---
title: GreyNoise Reviews
meta_title: 'GreyNoise Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter 129 reviews by the users' company size, role or industry
  to find out how GreyNoise works for a business like yours.
aggregate_rating:
  rating_value: 4.8
  review_count: 129
  scale: '5'
date_modified: '2026-06-24'
parent_category:
  name: System Security
  url: https://www.g2.com/categories/system-security
---

# GreyNoise Reviews
**Vendor:** GreyNoise  
**Category:** [Threat Intelligence Software](https://www.g2.com/categories/threat-intelligence)  
**Average Rating:** 4.8/5.0  
**Total Reviews:** 129
## About GreyNoise
GreyNoise provides security teams with real-time, verifiable perimeter threat intelligence. We observe and analyze both global and targeted internet scanning and exploitation traffic, and make this intelligence available to customers in real-time. This allows security teams to improve the efficiency of their SOC, perform threat hunting campaigns, and focus on critical threats to their network.



## GreyNoise Pros & Cons
**What users like:**

- Users commend the **ease of use** of GreyNoise, appreciating its simple implementation and management for enhanced security. (63 reviews)
- Users value the **automation capabilities** of GreyNoise, streamlining their monitoring and reducing distractions in their workflow. (54 reviews)
- Users value GreyNoise for its **accurate IP scanning and comprehensive support** , enhancing vulnerability management and reducing false alarms. (44 reviews)
- Users value the **effective threat detection** of GreyNoise, enabling timely responses to network vulnerabilities and risks. (43 reviews)
- Users appreciate the **automatic alerts** from GreyNoise that streamline security processes and reduce false positives. (40 reviews)
- Network Security (29 reviews)
- Scanning Efficiency (29 reviews)
- Users value the **accuracy of information** from GreyNoise, effectively filtering out irrelevant threats and enhancing threat analysis. (24 reviews)
- Security (23 reviews)
- Monitoring (22 reviews)

**What users dislike:**

- Users find the **slow loading times** of GreyNoise can hinder quick analysis and bulk processing efficiency. (15 reviews)
- Users find the **dashboard issues** hinder usability, preferring exports and lookups over a busy, detail-heavy interface. (8 reviews)
- Users often face **integration issues** with GreyNoise, needing custom scripts for older security tools and better tag descriptions. (8 reviews)
- Users experience **navigation issues** with GreyNoise, finding some information incomplete and the interface difficult to use. (8 reviews)
- Users find the **inefficient alert system** limits customization and complicates threat monitoring in larger networks. (7 reviews)
- Users find the **limited features** of GreyNoise hinder their ability to fully utilize the tool's potential. (7 reviews)
- Not User-Friendly (7 reviews)
- Information Overload (6 reviews)
- Users note the **limited functionality** of GreyNoise, specifically in data granularity and customization options for reports. (6 reviews)
- Users experience **poor visibility** due to a scattered UI, slow data loads, and outdated elements affecting ease of use. (6 reviews)

## GreyNoise Reviews
  ### 1. Strong IP intelligence with easy integrations into existing tools

**Rating:** 5.0/5.0 stars

**Reviewed by:** Rahul N. | DevOps Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** April 30, 2026

**What do you like best about GreyNoise?**

GreyNoise gives us a clear way to make sense of noisy or confusing network traffic without having to jump between multiple security tools. It helps quickly identify suspicious IPs, shows where they originate from, and what type of scanning or attack behavior they are involved in. The dashboard is easy to use and updates in near real time, which makes it simpler to figure out what needs immediate attention and what can be safely ignored. It also makes it easier to spot unusual activity and potential gaps like missing patches. Since it doesn’t require any agent installation, the setup was straightforward and saved a lot of manual effort for the team.

**What do you dislike about GreyNoise?**

GreyNoise helps us identify risky IPs and understand what is happening in our network traffic, but the intelligence can sometimes feel a bit limited since it does not always clearly explain the real impact or suggest specific next steps, which means we still need to do some manual validation before taking action. On the positive side, the onboarding process is smooth and easy to follow, and the support team is responsive and helpful whenever we need clarification or assistance.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise helps us cut through alert overload and unclear IP activity in our network monitoring. Earlier, we spent a lot of time digging through firewall logs, web traffic, and login attempts just to figure out what was actually risky, but now it helps us quickly separate real threats from normal internet noise. The integrations are also useful because IP context shows up directly inside our existing tools, so we do not have to keep switching between systems. From a cost and ROI perspective, it has reduced manual investigation time and eased the overall workload for the team. Performance-wise, it runs smoothly, delivers insights quickly, and the data updates fast enough to support near real time decision making without slowing down our workflow.

  ### 2. Faster threat detection with smooth integrations

**Rating:** 4.5/5.0 stars

**Reviewed by:** Hardik J. | DevOps Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** April 26, 2026

**What do you like best about GreyNoise?**

GreyNoise has really helped us understand what is actually going on in our network instead of getting confused by too many alerts. It clearly shows which threats are real and how an attacker might try to enter, so we know where to take action. The dashboard is simple and gives useful details like risky IPs, their location, and what they are targeting, which makes monitoring easier. It also adds proper context to logs and alerts, helping us quickly decide what to ignore and what to block. We were able to spot missing patches and unusual activity much faster. Setup was quick since there was no agent needed, and it has saved a lot of manual effort for the team.

**What do you dislike about GreyNoise?**

One concern I have is that even though GreyNoise provides clear data about threats, it does not always go deeper in suggesting the next steps, so the team still has to spend time figuring out what action to take. It would be more helpful if the intelligence side was a bit more proactive. Also, when it comes to cost, it does deliver value, but for smaller teams the pricing can feel a bit on the higher side compared to how much work still needs to be done manually. With stronger built-in insights and automation, it would feel more worth the investment.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise helps us solve the problem of handling too many alerts by clearly showing which traffic is actually risky and which is just normal internet noise. It fits well with our existing tools like SIEM and firewalls, so we can easily use its data in our daily workflow without extra effort. The performance is also strong, as it quickly scans and updates information in real time, which helps us react faster to threats. Because of this, our team spends less time on manual checking and can take quicker, more confident actions to secure the system.

  ### 3. Makes security monitoring more focused and efficient

**Rating:** 4.5/5.0 stars

**Reviewed by:** Gaurav S. | Manager DevOps, Mid-Market (51-1000 emp.)

**Reviewed Date:** April 26, 2026

**What do you like best about GreyNoise?**

I regularly check firewall logs, web server activity, and login attempts, and GreyNoise makes this process much easier by adding clear context to what’s actually happening. Instead of showing a long list of possible issues, it highlights real threats and attack paths, helping me understand which IPs risky and what kind of activity are is targeting our systems. The dashboard is simple, updates quickly, and shows useful details like risk scores, origin countries, and targeted networks, so I can act faster without deep investigation. It also helps identify missing patches and unusual traffic patterns, which improves our overall security posture. Since it works without any agent, setup was smooth and it saves a lot of manual effort, especially for smaller teams managing multiple alerts daily.

**What do you dislike about GreyNoise?**

One thing I feel is missing is deeper smart insights, as it mostly shows what is happening but does not always suggest what action to take next. It would be better if it had stronger AI to guide decisions automatically. Also, integrations with tools like SIEM or other security systems could be smoother, since connecting everything sometimes takes extra effort. Better automation and tighter integrations would save more time for teams.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise helped us cut down a lot of wasted time and effort by showing which alerts actually matter and which ones can be ignored, so we don’t end up chasing every small thing. This directly improves ROI because the team can focus on real risks instead of spending hours on false alarms. From a pricing point of view, it feels worth it since it replaces a lot of manual work and extra tools we used earlier. Also, the setup and onboarding were smooth, and the support team was helpful, which made it easy for us to start using it quickly without much training or delay.

  ### 4. Best tool to understand global and local security risks

**Rating:** 4.5/5.0 stars

**Reviewed by:** Kamlesh S. | DevOps Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** April 24, 2026

**What do you like best about GreyNoise?**

GreyNoise makes things easier by showing real threats instead of just a long list of possible issues. It helps me clearly see which IPs are risky, what kind of activity is happening, and where attacks could come from. The dashboard is simple and updates quickly, so I can track suspicious behavior without much effort. I also like that it adds proper context to alerts, so I know what needs action and what can be ignored. Setup was smooth since it works without any agent, and it saved a lot of time compared to manual checking.

**What do you dislike about GreyNoise?**

One thing that could be better is the integrations. While GreyNoise gives very useful data on its own, connecting it smoothly with other tools like SIEMs or existing security systems is not always as simple as expected. Sometimes it takes extra effort to align the data flow or make it work properly with current workflows. If integrations were more seamless and plug and play, it would save time and make it even more effective in daily operations.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise solved a big problem of wasting time on alerts that were not actually risky. Earlier, it was hard to understand which activity was serious and which was just normal internet noise, but now I can clearly see real threats with proper intelligence and context. This has improved decision making and reduced unnecessary work. It saves a lot of time and effort that would otherwise go into manual analysis, so the value feels justified. The on-boarding was smooth and the support team is quite helpful, which made it easier to start using it without much struggle.

  ### 5. Valuable platform for managing high volumes of security alerts

**Rating:** 4.5/5.0 stars

**Reviewed by:** Nandani K. | SRE, Mid-Market (51-1000 emp.)

**Reviewed Date:** March 10, 2026

**What do you like best about GreyNoise?**

GreyNoise has been very helpful in understanding what kind of activity is happening against our internet facing systems. It allows us to quickly search IP addresses by risk level and identify the most suspicious traffic or unusual hosting providers. This gives us a clearer picture of what is actually being scanned in our network and helps us block unauthorized access more confidently. I also like how it adds context to firewall logs, web server events, and other alerts so we can quickly see whether an IP is part of normal internet scanning or something more serious. It helps us identify endpoints that may be missing important security patches and reduce potential vulnerabilities. The platform also makes it easier to create firewall rules because malicious IPs and hosts are clearly classified.

**What do you dislike about GreyNoise?**

The tagging feature is helpful, but sometimes it needs a bit of fine-tuning to make sure IP status alerts are triggered correctly. Also, because the platform shows a lot of detailed data, it can feel a bit heavy to navigate during urgent investigations. In those situations, I sometimes export the results to review or share them more easily. A simpler incident focused view would make it easier to focus on the most important details quickly.

**What problems is GreyNoise solving and how is that benefiting you?**

One of the biggest problems was dealing with a large number of security alerts coming from unknown external IP addresses. It was often difficult to quickly understand whether those alerts were real threats or just routine internet scanning activity. Because of this, the team had to spend a lot of time manually investigating firewall logs, web server events, and authentication attempts. GreyNoise solved this by adding context to external IP activity, helping us see patterns like coordinated scanning or repeated probing across services. This makes it much easier to identify which IPs are actually malicious and which ones are harmless background noise. As a result, we can respond faster, create more accurate firewall rules, and focus our attention on real security risks instead of wasting time investigating normal internet traffic.

  ### 6. Makes threat investigation faster by adding context to suspicious IP activity

**Rating:** 4.5/5.0 stars

**Reviewed by:** Arun Y. | System Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** March 09, 2026

**What do you like best about GreyNoise?**

GreyNoise has been a very reliable tool and it was quite easy for us to set up and start using in our environment. The dashboard is very helpful because it clearly shows information about suspicious IP addresses, their risk scores, the country they come from, and which networks they are targeting. It also scans the network very quickly and updates the dashboard whenever new threats appear, which helps us stay aware of possible risks. I like that it is easy to search by risk level to identify the most malicious IPs and unusual traffic patterns. This helps us understand what kind of scanning or probing activity is happening against our internet facing systems. It also helps us find endpoints that may be missing security patches so we can fix them before they become a problem.

**What do you dislike about GreyNoise?**

The platform provides a lot of detailed data, which is useful, but during fast-moving incidents it can sometimes feel a bit overwhelming to review everything quickly. When investigating a potential threat, I occasionally export the results so it’s easier to analyze and share with the team. A more simplified, incident focused view inside the platform would make it easier to identify the most important details during high pressure situations.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise solves the problem of alert noise and unnecessary investigation in security monitoring. Before using it, we often received alerts from many unknown IP addresses, and it was hard to quickly understand whether they were real threats or just background internet scanning. This meant the team spent a lot of time investigating activity that was not actually dangerous. GreyNoise helps by adding context to those IPs and showing whether the activity is part of common internet-wide scanning or something more suspicious. Because of this, we can quickly filter out harmless noise and focus only on the threats that actually matter. It has saved our team a lot of investigation time and helped us respond to real security risks much faster.

  ### 7. GreyNoise Clearly Maps Real Attack Paths with Strong Agentless Scanning

**Rating:** 4.0/5.0 stars

**Reviewed by:** Madhavan A. | CEO, Mid-Market (51-1000 emp.)

**Reviewed Date:** March 03, 2026

**What do you like best about GreyNoise?**

The most important thing here is that it presents actual attackable paths as opposed to a listing of “potential” vulnerabilities that may or may not represent an issue and with GreyNoise, you receive factual evidence including captured credentials and the entire attack chain illustrated clearly so you can view how an attacker would penetrate your environment and where to stop them. It operates without installing a client (agent) and I have zero complaints regarding the agentless operation of GreyNoise; in particular, I think this is excellent for smaller teams who formerly had to manually spend upwards of a week to accomplish the same tasks that GreyNoise provides in under a week.

**What do you dislike about GreyNoise?**

The only complaint I have is that you can only perform one scan at a time. That’s it – that’s my gripe and it’s a big one – If another application is currently scanning your network, then you’re simply waiting for that other application to finish scanning and waiting can become tedious very quickly when you’re checking multiple environments.

**What problems is GreyNoise solving and how is that benefiting you?**

With GreyNoise we now conduct validations continuously eliminating our 11 month blind spot. In addition to identifying vulnerabilities that standard vulnerability scanners miss, GreyNoise identifies unmanaged assets, mis-configured systems and other items that may appear on a compliance checklist, but will definitely be exploited. You can send the output directly to the person responsible for managing the asset and state “Here is what happened, here is how you can fix it.” This is the primary goal of the product, and it delivers.

  ### 8. GreyNoise RIOT Classification Cuts Alert Noise and Speeds SIEM Triage

**Rating:** 4.5/5.0 stars

**Reviewed by:** Ruth S. | Senior Threat intelligence Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** May 15, 2026

**What do you like best about GreyNoise?**

We process high volume of inbound connection attempts and in payments infrastructure we get hit by opportunistic scanners constantly. Before GreyNoise every unfamiliar IP was getting escalated and analysts spent hours tracking crawlers. RIOT and noise classification let us filter those out of the alert queue immediately. Quick Check api integration into our SIEM took maybe one day to set up. The context it provides is also useful for not just that an IP is noisy but what it is scanning for.

**What do you dislike about GreyNoise?**

During compliance review last quarter we needed historical data on specific IPs going back further than standard subscription covers. That hit a wall fast. Regulators sometimes ask for retrospective threat context and the retention window did not cover it.

**What problems is GreyNoise solving and how is that benefiting you?**

There is a lot of mental effort that comes from not knowing whether an IP is a known scanner or actual threat. At scale that uncertainty adds up. GreyNoise answers that question faster than anything else. False positive escalations dropped and the incident queue feels more manageable. The other thing is analyst confidence. When someone makes a triage call they can now back it up with GreyNoise context instead of gut feeling.

  ### 9. Robust IP and Web Host scanning to ensure we apply reliable firewall policies across the environment

**Rating:** 5.0/5.0 stars

**Reviewed by:** Zaheer B. | Senior SOC Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 02, 2026

**What do you like best about GreyNoise?**

It is truly a great vulnerability management platform that allows us to scan IP addresses and web hosting services to get full visibility into all the traffic flowing within our network enabling us to have complete control over sites our users can access which is a very good way to decrease attack surface. It does a great job of classifying malicious IPs and web hosts so creating firewall policies for our environment is extremely straightforward. GreyNoise has been a fantastic vendor and partner to our overall cyber security program.

**What do you dislike about GreyNoise?**

Probably they could offer a wider choice of APIs to extract the IP information into our other tools and custom dashboards.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise makes it very easy to ensure the types of sites categorized as malicious or compromised never get accessed by our systems. The SSL inspection provides our organization with rich visibility into the traffic flows so we are able to achieve device protection across a wide spectrum. It blocks risky IPs entirely which is a great way to keep our network safe.

  ### 10. GreyNoise: Concrete Vulnerability Intelligence to Prevent Risks Before Threats Materialize

**Rating:** 5.0/5.0 stars

**Reviewed by:** Ignacio D. | Chief Information Security Officer, Mid-Market (51-1000 emp.)

**Reviewed Date:** March 03, 2026

**What do you like best about GreyNoise?**

GreyNoise has been a complete vulnerability management tool invaluable in strengthening security across our environment by offering strong analysis of network traffic pattern and complete exposure monitoring. It is great at assessing and prioritizing risks across all our attack surfaces long before any attack attempts.

**What do you dislike about GreyNoise?**

Nothing that I dislike it performs seamlessly and response and stability of the tool is quite good.

**What problems is GreyNoise solving and how is that benefiting you?**

It has given us enhanced visibility and control over external cyber threats and with its insights we can see in real time when an IP address is being impersonated and gives is recommendations on how to remediate against those and stop other malicious services as well. The tool gives us continuous visibility into every internet-facing asset, exposed asset and cloud misconfiguration that attackers could exploit and this helps with proactive patching of systems.

  ### 11. Quick detection of compromised URLs and exploitable vulnerabilities across all endpoints

**Rating:** 5.0/5.0 stars

**Reviewed by:** Antonio P. | Cyber Security Specialist, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 28, 2026

**What do you like best about GreyNoise?**

I was very impressed by the GreyNoise team as they helped us explore their product, they were very informative and a pleasure to work with. One aspect, among many, that I like most about GreyNoise is how it actively checks for network vulnerabilities and helps to track remediation more clearly than any other tool. It can easily check every URL connection path and provides us with a list of any threats detected in them so we are able to quickly identify endpoints that do not have critical security patches installed and further prevent endpoint exploits.

**What do you dislike about GreyNoise?**

I have not found any limitations with this tool as it takes no time to understand each of its features and get full visibility of all vulnerabilities.

**What problems is GreyNoise solving and how is that benefiting you?**

It quickly shows clear view of network vulnerabilities and compromised URLs making it easier to spot and prioritize risks. This helps us ensure that our security patches are being properly deployed to all our endpoints and that devices are blocked from accessing the compromised URLs, domains and hosting providers.

  ### 12. GreyNoise delivers reliable risk visibility and clear threat insights to keep patch status updated

**Rating:** 5.0/5.0 stars

**Reviewed by:** Maarten D. | Sr. Information Security Engineer, Small-Business (50 or fewer emp.)

**Reviewed Date:** January 21, 2026

**What do you like best about GreyNoise?**

It is easy to search by risk to see the most malicious IPs and hosting providers with unusual traffic which provides great vulnerability visibility and gives a clear understanding of what is being scanned allowing us to block unauthorized network access better than any other threat management platform we’ve utilized. Having a strong GreyNoise security team that is directly involved with prioritizing threats is a wonderful addition to this solution compared to other vulnerability management tools.

**What do you dislike about GreyNoise?**

The tagging, while a great feature does require some tweaking in some cases to get the proper IP status change alerts setup.

**What problems is GreyNoise solving and how is that benefiting you?**

It allows us to quickly detect and understand the risks in our environment as well as providing remediation steps involved in mitigating those risks. The detailed reports makes it easy to plan patches and the actionable alerts have helped us maintain a proactive approach to security, significantly reducing the risk of exposure to attacks.

  ### 13. A great platform for instant threat blocking and automated patching across all our operating systems

**Rating:** 5.0/5.0 stars

**Reviewed by:** Nicolas P. | Senior Manager, Infrastructure and Security, Small-Business (50 or fewer emp.)

**Reviewed Date:** February 05, 2026

**What do you like best about GreyNoise?**

It is a reliable solution that was easy to implement and manage in our environment and any follow-up questions we had were promptly answered. It has a unified dashboard which is great for CVE visibility that captures every IP address detail including risk scores, originating country and network they are targeting. The tool is very much fast to scan the network and update the dashboard with any new threats identified.

**What do you dislike about GreyNoise?**

I have not experienced any issues using GreyNoise and it effectively provides fantastic vulnerability management for our organization.

**What problems is GreyNoise solving and how is that benefiting you?**

Its excellent aspect of constant scanning the network guarantees that our organization stays ahead of any vulnerabilities and makes it easy to manage the security of all our endpoints in a single dashboard. We have made a significant progress toward a more secure network since it provides great remediation steps to follow.

  ### 14. Easy to implement, vulnerability scanning is excellent and malicious IP blocking is super accurate

**Rating:** 5.0/5.0 stars

**Reviewed by:** Mark H. | Sr. Cybersecurity Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 19, 2026

**What do you like best about GreyNoise?**

GreyNoise has been a very valuable tool for us because of how effectively it helps us set up a network scanner to ensure all connections to our devices are being scanned for vulnerabilities. The insights offered are incredibly detailed covering all possible aspects of an attack or potential compromise. I like that the dashboard provides all relevant details of scanned IPs, the type of risks associated with them and labeling all the attack vectors that need to be patched.

**What do you dislike about GreyNoise?**

I do not see any drawback as their support team is one of the best we’ve dealt with and the tool is very solid at managing vulnerabilities.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise provides exceptional service in tracking and eradicating potential vulnerabilities in our environment. It provides the best support against cyber attacks and we find great value in being able to block malicious network connection requests leading to a very powerful and reliable management of device risk exposure.

  ### 15. Effective IP Behavior and Links Performance Monitoring For a Clear Network Flow Visualization

**Rating:** 5.0/5.0 stars

**Reviewed by:** Leon H. | Security Operations Center Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 22, 2026

**What do you like best about GreyNoise?**

GreyNoise has been a very good tool for understanding our network traffic. It helps spot unusual IP activity and attempted portal logins which made our network monitoring much easier. The platform has great capability to create several traffic reports and alerts which allows us to view details about specific traffic subset and manage related CVEs in an effective manner.

**What do you dislike about GreyNoise?**

This platform is very good already I have not faced any issues and will continue using it as a quick traffic analyzer.

**What problems is GreyNoise solving and how is that benefiting you?**

The inclusion of IP behavior monitoring and CVE reports provides valuable visibility into the type of traffic traversing through our network which helps in optimizing the access rules and policies. The remediation action it provides are easy to understand and enables us to take immediate action accordingly to prevent possible attacks.

  ### 16. Extremely fast IP scans to surface malicious mass scanning targeting our network

**Rating:** 5.0/5.0 stars

**Reviewed by:** Bhaveen M. | Cloud Security Engineer, Small-Business (50 or fewer emp.)

**Reviewed Date:** February 04, 2026

**What do you like best about GreyNoise?**

The platform delivers reliable, efficient and comprehensive vulnerability management capabilities with great IP scanning accuracy that shows IP addresses that are opportunistically scanning the internet and are a threat to our organization enabling us to apply the right patches to our devices to completely prevent connections to such IPs. The GreyNoise team is always there to assist with remediation, questions about IP scans, and advice about configurations all done in a helpful and professional manner.

**What do you dislike about GreyNoise?**

It is seamless as I expected navigating across the dashboard is easy and nothing to dislike concerning its vulnerability scanning.

**What problems is GreyNoise solving and how is that benefiting you?**

Vulnerability management and IP risk prioritization in a single interface makes patch management more efficient and helps in cyber risk reduction. It really finds everything that could be a risk to our network and provides timely remediation actions to fix everything before an attack happens.

  ### 17. Concise and thorough during threat assessment with a swift blocking of detected malware

**Rating:** 5.0/5.0 stars

**Reviewed by:** Matteo S. | Sr. Information Security Manager, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 16, 2026

**What do you like best about GreyNoise?**

What stands out the most about GreyNoise is the details provided with each  exploit attempt by IPs scanning the internet, the GreyNoise team that was very helpful in setting it up in our environment, and the availability of patch management options. The dashboard clearly displays which endpoints the attackers are targeting and we can also add tags and assign different criticality values to multiple IP addresses allowing good planning of resolution and patching.

**What do you dislike about GreyNoise?**

Implementing scan in a large network requires lots of configuration to balance load and network and also to reduce alert noise.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise provides us with enhanced visibility into our organization’s risk landscape across our network environment and the endpoints within it. Managing cyber exposure with patching has been very easy and effective, and it has improved how we handle security day to day. It always gives a clear path towards remediating threats in our environment.

  ### 18. Great threat intelligence tool offering custom remediation plans prioritized for our environment

**Rating:** 5.0/5.0 stars

**Reviewed by:** Dwight K. | SOC Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 06, 2026

**What do you like best about GreyNoise?**

It’s easy to configure IP status change alerts within the GreyNoise Visualizer alerts interface to detect potential IP internet scanning and verify any rising wave of activity on the internet. The complete CVEs details on a host is very important to us and the graphical interface allows us to view all the attack routes information easily. I like that the staff at GreyNoise are very engaging and listen to our feedback, its just been a delight from day one.

**What do you dislike about GreyNoise?**

Multiple export options after an analysis of bulk IPs is an area that would help improve the completeness of this product.

**What problems is GreyNoise solving and how is that benefiting you?**

It makes vulnerability management easily accessible and makes prioritizing patches a straightforward process. This is because it makes us aware of each and every internet threat and their severity. It has made it easy to configure our firewall security whenever needed and as crawl behaviors or releases of malicious tools occur.

  ### 19. GreyNoise Delivers Accurate Threat Alerts and Very Efficient Malicious IP Monitoring

**Rating:** 5.0/5.0 stars

**Reviewed by:** Derek K. | Cybersecurity Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 25, 2026

**What do you like best about GreyNoise?**

GreyNoise makes it easy to monitor malicious URLs and gives recent activity insight which helps manage network threats effectively. It’s great in providing accurate vulnerability alerts and monitoring of all network connections and analyzing multiple IP addresses makes it easy to find botnets and block critical attack paths.

**What do you dislike about GreyNoise?**

There is nothing I like least about GreyNoise and I have not experienced any performance issues even with large data analysis.

**What problems is GreyNoise solving and how is that benefiting you?**

I really enjoy the response time of GreyNoise for a comprehensive view of all network vulnerabilities. I have worked a lot with this tool and it is very helpful for monitoring network threats and gives alerts on detected botnet activity across the internet.

  ### 20. Visualizing network risks with thorough vulnerability information and IP scans

**Rating:** 5.0/5.0 stars

**Reviewed by:** Nicholas T. | Cloud Security Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 13, 2026

**What do you like best about GreyNoise?**

GreyNoise works in an exceptionally outstanding way when it comes to vulnerability analysis and management. To find vulnerabilities, misconfigurations and potential threats the tool effectively scans networks, system and applications with the ability to build a blocklist that block malicious network connections, stop unauthorized processes while providing remediation actions that can be taken to keep our network secure from scanning, spoofing and malware attacks.

**What do you dislike about GreyNoise?**

The initial tuning and IP classification phase need to be done correctly to get the most out of the this tool.

**What problems is GreyNoise solving and how is that benefiting you?**

It enables me to search for vulnerabilities and malicious traffic connection attempts by real time threat indicators which is a great help in prioritizing remediation. The tool is very reliable for visualizing any vulnerability and configuration errors that our network might be exposed to which has always been a good starting point for implementing security policies and reliable firewall.

  ### 21. GreyNoise is the finest in the aspect of detecting endpoint threats and firewall config automation

**Rating:** 5.0/5.0 stars

**Reviewed by:** Lincoln C. | IT Security Operations Asst., Mid-Market (51-1000 emp.)

**Reviewed Date:** February 06, 2026

**What do you like best about GreyNoise?**

GreyNoise is very user-friendly and provides comprehensive information on vulnerabilities within our environment. The way it automatically scans our systems and sends alerts whenever a new vulnerability is identified is amazing. I really enjoy it since it effectively prioritizes risks by severity enabling us to focus on the most critical threats first to ensure we never lose data or business reputation.

**What do you dislike about GreyNoise?**

I do not have any major dislikes with GreyNoise, however they could improve on the granularity of the reports to ensure we export as much details as we need.

**What problems is GreyNoise solving and how is that benefiting you?**

It helped our organization create a network defense that is impenetrable which enables us to achieve business goals in a timely manner while keeping the organization safe. Network risks have been greatly decreased and patch schedules and procedures can be easily customized.

  ### 22. The IP scanning is robust and accurate offering the best level of vulnerability detection

**Rating:** 5.0/5.0 stars

**Reviewed by:** Edduin G. | Network Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 08, 2026

**What do you like best about GreyNoise?**

GreyNoise is an excellent vulnerability assessment tool that helps in picking up and prioritizing the vulnerabilities our organization face within the IT ecosystem. GreyNoise monitors every IP address and domains to provide continuous threat detection while at the same time creating a very intuitive dashboard with suggested resolutions steps. Because of the way it reliably scans IP addresses we are very confident in the accuracy of attack detection and malware blocking.

**What do you dislike about GreyNoise?**

There is nothing to dislike, overall the tool is very good and gives us daily access to a list of vulnerabilities and fixes for those.

**What problems is GreyNoise solving and how is that benefiting you?**

The tool shows how many IPs are classified as malicious and what they are targeting and this information enables us to ensure all our endpoints have active firewall configured. It helps locate malicious traffic so that we can protect all our devices before they are targeted and exploited by attackers.

  ### 23. Reliably detects network vulnerabilities providing precise information to carry out remediation

**Rating:** 5.0/5.0 stars

**Reviewed by:** Guillaume B. | Senior Network & Security Manager, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 16, 2026

**What do you like best about GreyNoise?**

GreyNoise performs the scan of the entire network activities and I have not seen any such solution before in the market which does such an extensive job of finding vulnerabilities. The threat detection capabilities along with information on remediation in my experience are unsurpassed. It handles IP address scanning very fluidly and its threat prioritization feature helps us focus on the critical vulnerabilities that need to addressed right away.

**What do you dislike about GreyNoise?**

So far I don’t have any negative feedback on the solution. I am very impressed with the accuracy of threat detection and vulnerability management.

**What problems is GreyNoise solving and how is that benefiting you?**

Gives us the ability to continuously scan the network connections and provides real time alerts in case of vulnerabilities, and also offers various alternate solutions to fix the identified issues. Our organization is able to secure existing systems by fixing the vulnerabilities to prevent further risks or attacks.

  ### 24. GreyNoise Delivers Deep Traffic Protocol Visibility and  Threat Detection to Support Secure Patching

**Rating:** 5.0/5.0 stars

**Reviewed by:** Harrison L. | Security Administrator, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 02, 2026

**What do you like best about GreyNoise?**

The tool provides a deep dive into our network traffic, revealing patterns, URL traffic spikes and pinpointing potential CVEs. The centralized view of all vulnerabilities helps us make the right choices regarding network tuning and patching. It is able to monitor the activity of every IP address in real time and any anomalies associated with their behavior change making it easier to block malicious traffic.

**What do you dislike about GreyNoise?**

I have had a very positive experience with GreyNoise, they always deliver wonderful service and there are no features that I dislike.

**What problems is GreyNoise solving and how is that benefiting you?**

Using GreyNoise to identify malicious traffic promptly facilitates very secure patching of all our devices and helps secure all connections to our environment. The break down of network traffic by protocols and IP addresses gives us robust insights on how to keep the environment secure.

  ### 25. Comprehensive and highly performant platform achieving vulnerability management quite easily

**Rating:** 5.0/5.0 stars

**Reviewed by:** Quentin F. | Senior Security Architect, Small-Business (50 or fewer emp.)

**Reviewed Date:** January 29, 2026

**What do you like best about GreyNoise?**

GreyNoise works continuously and focuses on exploitable risks and complete analysis of CVEs which provides real-time vulnerability insights with accurate, context-aware prioritization. Also, it’s own rating system is an additional point as it helps to prioritize which CVE to resolve first. The ease of deployment is great, use of the tool vulnerability management is fairly intuitive and really powerful.

**What do you dislike about GreyNoise?**

It requires advanced alert prioritization setup to be able to focus on endpoint vulnerability exposure that is always current.

**What problems is GreyNoise solving and how is that benefiting you?**

We are able to easily find vulnerabilities and prioritize based on host or CVE and even we get the steps of how to patch those threats. It enables us block IP addresses flagged by the platform in real time and gives us the ability to quickly attend to a vulnerability as soon as it is known.

  ### 26. Powerful tool with optimized threat detection capabilities and easy to follow remediation process

**Rating:** 5.0/5.0 stars

**Reviewed by:** Sebastian K. | Network Security Architect, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 28, 2026

**What do you like best about GreyNoise?**

GreyNoise is a robust vulnerability management solution enhanced by the streamlined dashboard that provides a comprehensive view of network attack surface and threat landscape. I find it to be the market leader in cyber security management by how effectively it provides endpoint protection from any potential malware attack. It does provide quick analysis for newly released CVEs which is great for acting quickly on zero day vulnerabilities.

**What do you dislike about GreyNoise?**

Data exporting should support more formats that are easily readable, however JSON and CSV files are supported and works just fine.

**What problems is GreyNoise solving and how is that benefiting you?**

Allows for efficient and centralized assessment of potential vulnerabilities across our organization’s systems. We utilize it to search and analyze IP addresses which provides great visibility to what network connections are most vulnerable in our environment and enables us to respond swiftly to potential threats.

  ### 27. GreyNoise keeps the dark web stuff visible mostly

**Rating:** 4.5/5.0 stars

**Reviewed by:** Piyush J. | CEO and Founder, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 24, 2025

**What do you like best about GreyNoise?**

Honestly, the actual data we see through the dark net monitoring was a pleasant surprise because most of these tools produce blank graphs; takedowns of phishing sites also happen quickly so I do not feel an urgency to contact anyone and support analysts do not read from scripts when answering questions and surprisingly they know what they're talking about.

**What do you dislike about GreyNoise?**

Also I would like to see the session timeout be less aggressive; every time I blink I have to login again. The Sandbox is very restrictive, why can I only upload exe files? If I have a zipped compressed file the system does not check for malware which is the point of the Sandbox; and initially the alerts were extremely loud.

**What problems is GreyNoise solving and how is that benefiting you?**

For the most part I am just trying to protect the brand name from being hijacked by look alike domains. It provides us with visibility of potential threats outside of our firewalls; it prevents credential leaks from becoming a catastrophe and allows me to leave work on time.

  ### 28. Solid tool for effective CVEs identification and cataloging to prioritize patching

**Rating:** 5.0/5.0 stars

**Reviewed by:** Riccardo P. | Senior Manager, Security Architecture & Engineering, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 29, 2026

**What do you like best about GreyNoise?**

This is a great vulnerability management tool with superb customer service and reliable IP and ISP scanning that allows for quick reporting on new vulnerabilities as they emerge. It provides a user interface capable of managing a large volume of vulnerability data supporting a complete assessment of our company’s risk exposure. The support team is very responsive to our needs and great at finding solutions to network threats.

**What do you dislike about GreyNoise?**

It performs as expected for a vulnerability management solution and excels at providing a good user experience.

**What problems is GreyNoise solving and how is that benefiting you?**

It helps perform vulnerability management on a wide variety of devices connected to our network so we have a good coverage of our areas of highest risk. Rating vulnerabilities correctly using GreyNoise helps apply the right patches to all our IT assets to protect all network connections.

  ### 29. Smart and complete scanning of internet requests to identify threats and block malicious URLs

**Rating:** 5.0/5.0 stars

**Reviewed by:** Thibaut Z. | Cybersecurity Analyst, Small-Business (50 or fewer emp.)

**Reviewed Date:** January 15, 2026

**What do you like best about GreyNoise?**

This tool is a smart security solution that implements highly effective vulnerability assessment, management and remediation services in our network with full visibility of all our devices. It has many capabilities to find and block network threats from domains to SSL crawlers and to the IP level. Maintaining constant analysis of IP behavior changes and detecting every suspicious internet scanning helps us react timely on security risks and in a fast way.

**What do you dislike about GreyNoise?**

Better and more detailed documentation is something I would like GreyNoise to put some attention on.

**What problems is GreyNoise solving and how is that benefiting you?**

It provides constant monitoring of the internet activities and alerts us so we are able to proactively avoid any vulnerability attacks and network breaches. The tool gives us a detailed report on each vulnerability and the correct information for their patches which greatly assists with endpoints risk mitigation and compliance.

  ### 30. Reliably reports on currently exploitable CVEs ensuring robust protection against cyber threats

**Rating:** 5.0/5.0 stars

**Reviewed by:** Rudolf B. | Sr. Cloud Security Engineer, Small-Business (50 or fewer emp.)

**Reviewed Date:** January 27, 2026

**What do you like best about GreyNoise?**

Utilizing its intelligent scanning and automated data collection, GreyNoise provides real time comprehensive overview of all vulnerabilities and information about network threats. It gives us the ability to quickly get to the root cause of botnet activity within our network and balances showing true risk by focusing on all CVEs present on our externally accessible devices while also providing us with actionable remediation information.

**What do you dislike about GreyNoise?**

While it is providing detailed insights, exporting options could be more flexible to meet the specific organization needs.

**What problems is GreyNoise solving and how is that benefiting you?**

It helps choose the most important patches to install, making it less likely that we will install a patch that is no longer needed which helps us quickly resolve emerging threats. Attack path analysis helps us thoroughly understand our environments threat landscape way better and block any exploitation attempts.

  ### 31. Clear visualization of network traffic flow to sufficiently detect anomalies and botnet activity

**Rating:** 5.0/5.0 stars

**Reviewed by:** Philippe D. | SOC Analyst, Small-Business (50 or fewer emp.)

**Reviewed Date:** January 23, 2026

**What do you like best about GreyNoise?**

Setting up GreyNoise vulnerability scanning was very easy, the user interface is intuitive, and the real-time scanning provides me with valuable CVEs insights. Any network exploitation attempts identified are clearly defined and accompanied by steps on how to remediate them. Getting live updates of all new threats makes it easy to keep up with emerging security threats and effectively block any observed botnet activity.

**What do you dislike about GreyNoise?**

I haven’t noticed any shortcomings yet, the tool is very well suited for our environment and I stay assured that vulnerabilities are in check.

**What problems is GreyNoise solving and how is that benefiting you?**

Effectively helps to understand the behavior irregularities in our network and further predict security events. It shows us which IP addresses are scanning the internet, helps spot unusual activity and identify performance of links to remediate threats early before our devices access malicious links.

  ### 32. Excellent tool to easily find the vulnerable host within our network and best for firewall tuning

**Rating:** 5.0/5.0 stars

**Reviewed by:** Eric F. | Network Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 27, 2026

**What do you like best about GreyNoise?**

I like its ability to effectively assess network connections and IP behavior change to proactively identify vulnerabilities exploited by attackers. It protects us against malware and login attempts, even if it is not known, due to its behavior-based mode of operation. Compared to other tools it took us less time to set up IP scans and the process is much easier. The system is great and gives us great insights into threats targeting our endpoints.

**What do you dislike about GreyNoise?**

Nothing major to note as a dislike we have found the service and solution great and never had any issue.

**What problems is GreyNoise solving and how is that benefiting you?**

It provides real-time vulnerability assessment keeping us up to date with the latest vulnerabilities which helps us in configuring our firewall to protect the organization from any breaches, malicious portal logins and data leakage.

  ### 33. Powerful Real-Time IP Risk Analysis with Rich CVE Visibility Greatly Enhancing Threat Mitigation

**Rating:** 5.0/5.0 stars

**Reviewed by:** Jonathan L. | Cybersecurity Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 03, 2026

**What do you like best about GreyNoise?**

Very powerful tool that helps with great amount of IP addresses analysis and visibility allowing us to generate various reports and accurate IP classification depending on the risk score. The dashboard has an abundant amount of CVEs information available making it easy for us to investigate all network threats. It responds in real-time to known and unknown threats before they become business disrupting events.

**What do you dislike about GreyNoise?**

I have nothing negative to say about the team I have worked with and the tool provides the best vulnerability scanning features.

**What problems is GreyNoise solving and how is that benefiting you?**

It keeps our organization safe from constantly evolving cyberattacks and allows us to create multiple remediation plans based on the threats discovered. The dashboard gives us a full explanation of each vulnerability offering a standout proactive approach to cybersecurity.

  ### 34. The tool effectively manages vulnerabilities with bulk IP analysis for faster remediation of threats

**Rating:** 5.0/5.0 stars

**Reviewed by:** Giovanni P. | Senior Infrastructure Engineer, Network, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 21, 2026

**What do you like best about GreyNoise?**

I value its intelligent risk-based prioritization which allows us to focus first on the vulnerabilities that represent the greatest threat. The real-time updated list of IPs gives us the vulnerabilities that actually matter, not just a bloated list of CVEs. Its continuous monitoring of network connections and immediate visibility into critical endpoint exposure is an added value and effectively supports our remediation efforts.

**What do you dislike about GreyNoise?**

There aren’t any features that I dislike, GreyNoise is very comprehensive in every aspect.

**What problems is GreyNoise solving and how is that benefiting you?**

Provides great oversight of our environment and is extremely valuable in reducing the attack surface. It excels at identifying potential security risks across endpoints which has made vulnerability management much simpler for us. The clear vulnerability insights helps focus remediation efforts efficiently on what attackers are targeting at that moment.

  ### 35. GreyNoise: Delivers Strong IP Visibility with Clear Timelines and Tags.

**Rating:** 4.5/5.0 stars

**Reviewed by:** Maite M. | Software Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 16, 2026

**What do you like best about GreyNoise?**

For the past 3 years we have been using GreyNoise to monitor our systems and what I like most about it is how it gives us strong visibility into what external IPs are doing before they teach deeper into our environment. I like the IP profile view which shows clear timelines and detailed tags which helps us to quickly understand intent.

**What do you dislike about GreyNoise?**

It can take some time to work through multiple IP lookups in a row.

**What problems is GreyNoise solving and how is that benefiting you?**

When investigating perimeter alerts, I can easily review the observed activity timeline and see specific behavioral tags such as TLS/SSL scanning or exploit related attempts, hence making it super easy to understand intent and responding with the right controls.

  ### 36. The very best tool to find vulnerabilities and patch them immediately to prevent network compromise

**Rating:** 5.0/5.0 stars

**Reviewed by:** Dustin T. | System Administrator, Mid-Market (51-1000 emp.)

**Reviewed Date:** February 06, 2026

**What do you like best about GreyNoise?**

Great product that helps ensure we stay up to date against all vulnerabilities by analyzing the intent of network connections in our environment and portal login attempts to prevent WordPress enumeration. It’s got very good centralized cybersecurity management with the most accurate vulnerability detection and reliable remediation workflow management.

**What do you dislike about GreyNoise?**

There are no noticeable glitches or inaccuracies present in vulnerability scanning and the tool doesn’t fall short in providing tailored experience.

**What problems is GreyNoise solving and how is that benefiting you?**

The tool helps our company identify the vulnerabilities found in our servers, endpoints and public facing devices. The dashboard has fantastic visuals for a snapshot understanding of compromised IP addresses, domains and ISPs which helps us understand the threat landscape and apply patches immediately so our environment isn’t attacked.

  ### 37. Very fast vulnerability assessment solution with good additional firewall management features

**Rating:** 5.0/5.0 stars

**Reviewed by:** Arvind R. | Site Reliability Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 14, 2026

**What do you like best about GreyNoise?**

From solution selection through to deployment and operation, GreyNoise team has been very supportive and professional. GreyNoise has been the top solution for scanning our network for vulnerabilities and provides a rich information about the possible threats posed by the scanned domains, IP addresses and ISPs. The multiple IP analyses are precise and they are very helpful for maintaining firewalls and other security compliance phases.

**What do you dislike about GreyNoise?**

I have not experienced any limitations using this solution or encountered features that are unpleasant to use.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise ended up taking vulnerability assessment towards the next stage in our organization by enabling us to detect compromised URLs and block IPs that are risky, offering a seamless cycle of network safety from a single point of monitoring, classifying, and fixing all vulnerabilities across all device connections.

  ### 38. Perfect for reducing false positives and alert fatigue

**Rating:** 4.5/5.0 stars

**Reviewed by:** Vishal D. | QA Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 02, 2025

**What do you like best about GreyNoise?**

I use GreyNoise every day to cut down all the noise in my alerts. It quickly tells me if an IP is just a mass scanner or something I actually need to look into. This saves me hours that I used to waste on false positives. It is easy to set up, works smoothly with my existing tools, and the interface is simple to understand. I can cross check suspicious activity in seconds and focus only on real threats. The integrations with our security tools make the response process much faster.

**What do you dislike about GreyNoise?**

A few advanced features are not easy to find, and occasionally it does not auto load data from our EDR, so I have to double check things myself. I would love clearer filtering options and maybe some AI features to help spot new threats faster.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise has solved the biggest problem I had like wasting hours chasing alerts that turned out to be nothing. It helps me instantly tell if an IP hitting my systems is just a mass scanner or something I should actually investigate. Before this, I spent too much time dealing with false positives and digging through noise. Now I can cross check suspicious activity in seconds and walk away from anything that is not unique to my environment. It also keeps my SIEM and other tools from overwhelming me with unnecessary alerts.

  ### 39. It is expensive but surprisingly the sandbox does work

**Rating:** 4.5/5.0 stars

**Reviewed by:** Yuliya K. | Lead Quality Assurance Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 01, 2025

**What do you like best about GreyNoise?**

I am writing this as the air conditioning in our server room hums extremely loudly and is distracting. To be honest the sandbox did not crash on me when I was doing malware analysis which is good news since most of the tools I have worked with do and I have to restart everything. Also the summary output from the AI assistant is very readable and I no longer have to read through 100 logs which consumes a lot of time.

**What do you dislike about GreyNoise?**

The dark theme (dark mode) is always set back to bright white upon logging in and it is very frustrating so they should fix this bug as quickly as possible.The price point of this application is simply too high in comparison to what you receive and it appears that the developers broke the product into a number of different modules so they could charge you for each one individually. In addition it becomes extremely slow and cumbersome if you are trying to perform a series of complex or multi-query searches at once.

**What problems is GreyNoise solving and how is that benefiting you?**

We use GreyNoise to eliminate most of the background noise and it prevent us from chasing down and investigating every single scanner. We utilize greynoise as it saves us a tremendous amount of time by not having to review all alerts individually and instead the automation process eliminates most of our manual investigation time and allows us to focus on other areas of our job.

  ### 40. Complete visibility tool for our network connections and real time URL intent monitoring

**Rating:** 5.0/5.0 stars

**Reviewed by:** Maurice B. | Information Security Engineer, Small-Business (50 or fewer emp.)

**Reviewed Date:** February 03, 2026

**What do you like best about GreyNoise?**

My experience with GreyNoise is excellent. They offer outstanding support, effective responses and have good knowledge in cybersecurity. The tool has been very helpful in monitoring our network environment observing network traffic utilization to report on CVEs. It catches malware, URL anomalies and traffic spikes allowing us to review all network logs and set the appropriate firewalls.

**What do you dislike about GreyNoise?**

GreyNoise is the best traffic analyzing tool in the market. It has a lot of power and capabilities and no functions I find disappointing.

**What problems is GreyNoise solving and how is that benefiting you?**

It provides a great level of insight about our network enabling us to drill down into specific URLs to analyze their intent and effectively block any web crawlers, spoofing and malicious logins attempts to our systems.

  ### 41. Powerful Traffic Inspection Providing High Vulnerability Intelligence to Prevent Zero Day Impact

**Rating:** 5.0/5.0 stars

**Reviewed by:** Rafael V. | Security Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** March 02, 2026

**What do you like best about GreyNoise?**

What I like most is its ability to provide real-time protection against emerging threats and the superior capabilities to inspect incoming and outgoing traffic, as well as analyzing content downloaded or uploaded from online sources preventing malware and zero day exploits from spreading to our network.

**What do you dislike about GreyNoise?**

It should support more file formats for IP analysis and file size limits needs to be increased.

**What problems is GreyNoise solving and how is that benefiting you?**

GreyNoise helps in gathering, analyzing and utilizing intelligence about threats to take remediation steps against vulnerabilities and avoid misuse of any company data. It gives us the protection we need from zero day attacks as soon as they are recognized.

  ### 42. Fantastic scoring of IPs based on vulnerabilities they possess to effectively protect our network

**Rating:** 5.0/5.0 stars

**Reviewed by:** Aleksander W. | System Administrator, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 09, 2026

**What do you like best about GreyNoise?**

GreyNoise is very good at auditing IP intent across the internet and it is able to capture behaviors that IP addresses are engaging in and if an IP address has at least one malicious tag, it is classified as malicious. This helps detect harmful traffic in real time and proactively manage vulnerabilities so that we effectively secure our public facing devices.

**What do you dislike about GreyNoise?**

I found no functionality that I dislike so far, the tool is very reliable and helps us a lot to make our endpoints a lot more secure.

**What problems is GreyNoise solving and how is that benefiting you?**

We have full visibility of all network connections to our systems and we are able to manage and mitigate the tagged vulnerabilities in easily since GreyNoise provides us with exact IP health scores and remediations against the existing threats.

  ### 43. Great at finding vulnerabilities leading to the most accurate patch cycles

**Rating:** 5.0/5.0 stars

**Reviewed by:** Hunter L. | Network Security Architect, Small-Business (50 or fewer emp.)

**Reviewed Date:** February 04, 2026

**What do you like best about GreyNoise?**

It has really good ISP scanning and CVE reporting giving us accurate threat results without false positives and the easy to navigate dashboard helps view their risk scoring in one place. Their service has been outstanding and the tool gives instant status of all endpoints in our environment and provides really reliable threat management recommendations on all the risks identified.

**What do you dislike about GreyNoise?**

They could give us the option to add more than one email when choosing where threat alerts should be sent.

**What problems is GreyNoise solving and how is that benefiting you?**

It is an excellent tool helping us manage endpoint security, patching and firewall configuration. Its real-time vulnerability detection goes beyond the regular CVE scanning to helping remediate exposure of Operating systems and applications.

  ### 44. Instantly identifies threats and reduces false positives

**Rating:** 4.0/5.0 stars

**Reviewed by:** Vaibhav S. | Cloud Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** November 18, 2025

**What do you like best about GreyNoise?**

GreyNoise helps me quickly tell whether strange traffic hitting our servers is harmless or something suspicious, so I do not waste time checking every IP in the logs. It gives fast results, lets me set alerts for certain domains or ISPs, and helps spot any unusual activity on the internet. It also cuts down a lot of false positives, like having a digital bouncer that filters out all the background noise.

**What do you dislike about GreyNoise?**

Some IPs do not have enough information, so I sometimes have to double check things myself. I also feel like certain parts of the interface could be a bit easier to navigate.

**What problems is GreyNoise solving and how is that benefiting you?**

The biggest problem GreyNoise solves is helping me tell good traffic from bad traffic without doing all the manual checks. It also alerts me about unusual activity and blocks IPs that try to break into our servers. This has hugely reduced false positives and saved us a lot of time and effort. It basically acts like a filter that keeps only the real threats in front of me.

  ### 45. Delivers Great Threat Visibility with Patch Recommendations that Cover all Attacker Tactics

**Rating:** 5.0/5.0 stars

**Reviewed by:** Khalid S. | Cybersecurity Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 22, 2026

**What do you like best about GreyNoise?**

GreyNoise threat intelligence system dynamically scores vulnerabilities based on real-time threat and exploit data. Its CVEs database is extensive and easy to analyze within the platform and I like that it delivers reports on analyzed URLs and patch recommendations to be installed on each endpoint that we have, giving us greater threat visibility and mitigation.

**What do you dislike about GreyNoise?**

With its complete risk visibility and intuitive detailing of threats, I find no cons on the product and support wise.

**What problems is GreyNoise solving and how is that benefiting you?**

The platform consolidates vulnerability data and threat intelligence connecting the dots from attacker activity to their tactics and techniques giving us the ability to patch the most critical threats on the internet and protect all devices within our network from accessing dangerous URLs.

  ### 46. Detects and blocks attack attempts completely ensuring greater internet access security

**Rating:** 5.0/5.0 stars

**Reviewed by:** Odenyire A. | Systems & Network Administrator, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 09, 2025

**What do you like best about GreyNoise?**

Easy to use and allows us to carry out network vulnerability assessment at a low cost and in a flexible way. The process of uploading TXT, CSV, and PCAPNG files for analysis was quick and the IP reports are clear and concise. Provides great ability to create IP tags, set access policies and paste malicious IPs into our firewalls to block any future traffic from such unwanted IP addresses.

**What do you dislike about GreyNoise?**

The product has no downsides or inconveniences in the use of it searching for vulnerabilities in our network and analyzing multiple IPs.

**What problems is GreyNoise solving and how is that benefiting you?**

The program carries out complete scan of websites and IPs, identifying all possible vulnerabilities and reporting on threats found clearly and precisely. Another advantage of GreyNoise is its effectiveness in supporting effective firewall setup to block network scanning to protect our devices from possible cyberattacks.

  ### 47. Quick query on botnet and scanner activity to strengthen perimeter defense

**Rating:** 5.0/5.0 stars

**Reviewed by:** Wamache N. | Cyber Security Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 03, 2025

**What do you like best about GreyNoise?**

The IP reports are easy to read after we perform a scan on multiple IPs to find out what is going on the internet. I do like that the dashboard is refreshed with the latest IP intelligence and it gives us the ability to build blocklists tuned precisely to our organization’s threat model so it automatically blocks malicious IPs and acts as our real-time firewall.

**What do you dislike about GreyNoise?**

The product has been very reliable in its security capabilities and we have suffered no ill effects from any internet attacks.

**What problems is GreyNoise solving and how is that benefiting you?**

It enabled us to create a firewall that acts as web filtering with customized security rules for links, IPs and domains providing a reliable way to protect our network against illegitimate traffic. New IPs observed by GreyNoise that match our block criteria are added instantly to our blocklist before they access our systems.

  ### 48. Comprehensive tool for extremely detailed analysis of malicious IP connection attempts

**Rating:** 5.0/5.0 stars

**Reviewed by:** Marcus A. | Application Security Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 08, 2025

**What do you like best about GreyNoise?**

I like this tool because it always helps me identify network vulnerabilities by scanning IPs, hosting and ISPs making it easy to plan my security strategies and secure the network. The tool is very reliable in blocking attackers attempting to bypass web service API authentication controls which protects our data in transit from interception.

**What do you dislike about GreyNoise?**

I have only had a good experience with this tool so far and there is nothing I see as an issue at this stage.

**What problems is GreyNoise solving and how is that benefiting you?**

It performs a very comprehensive analysis of the internet and once the scans are complete I get a detailed report of all the vulnerabilities found and immediate recommendations on how to fix them. We have effectively used this tool to block IP addresses observed to crawl URIs and those attempting to send empty TCP connections across the internet.

  ### 49. Fast, Easy to Use, and Reliable Security Solution to Identify and Mitigate Internet Threats

**Rating:** 5.0/5.0 stars

**Reviewed by:** Alex F. | IT & Systems Engineer - Cybersecurity, Mid-Market (51-1000 emp.)

**Reviewed Date:** January 04, 2026

**What do you like best about GreyNoise?**

Fast and easy to use solution that provides an out-of-box blocklist tracking malicious IPs and login attempts targeting our systems. I like the deep level of internet scans covering every security aspect and the team behind the service listens to customers and keeps implementing more features. The information on how to fix vulnerabilities helps us ensure all our systems are protected with strong passwords and multi-factor authentication to mitigate any unauthorized access.

**What do you dislike about GreyNoise?**

All the features all are easy to use and I am glad that no bugs experienced while using this solution.

**What problems is GreyNoise solving and how is that benefiting you?**

Suspicious internet traffic can be detected, evaluated, and acted upon in a quick and automated manner so all our systems are protected before they are exploited by malware and hackers.

  ### 50. Exceptional real-time IP analysis providing very detailed vulnerability resolutions

**Rating:** 5.0/5.0 stars

**Reviewed by:** Stanley A. | Cloud Security Assessment Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 10, 2025

**What do you like best about GreyNoise?**

I’m impressed by the easy installation of GreyNoise in our environment, it runs very smooth and finds all kinds of threats on the internet and is able to produce a graphical report that illustrates sequence of recorded events of multiple IPs performing network penetration attempts. It does a good job exposing all compromised ISPs across the internet and it has been our best tool to link vulnerabilities with patching.

**What do you dislike about GreyNoise?**

Nothing really I would say the experience is highly positive and I was impressed by how detailed the network analysis and vulnerability resolutions are.

**What problems is GreyNoise solving and how is that benefiting you?**

It has enabled me to be successful in establishing security remediation efforts inside our organization to secure our systems from all kinds of vulnerabilities. Internet access is controlled by ensuring compromised IP addresses are blocked and devices can’t access dangerous programs.



- [View GreyNoise pricing details and edition comparison](https://www.g2.com/products/greynoise/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-25+17%3A10%3A01+-0500&secure%5Bsession_id%5D=a520a1a0-283f-4a83-8acd-dbd1a01a723d&secure%5Btoken%5D=a7ab7c406d52b15e0ab98c05a982eb9eeed32a36f7689545f0f3ee05271118d4&format=llm_user)
## GreyNoise Integrations
  - [Airtable](https://www.g2.com/products/airtable/reviews)
  - [Apollo.io](https://www.g2.com/products/apollo-io/reviews)
  - [AWS Security Hub](https://www.g2.com/products/aws-security-hub/reviews)
  - [Copilot](https://www.g2.com/products/copilot-copilot/reviews)
  - [Dropzone AI](https://www.g2.com/products/dropzone-ai/reviews)
  - [FortiSOAR](https://www.g2.com/products/fortisoar/reviews)
  - [IBM QRadar SIEM](https://www.g2.com/products/ibm-ibm-qradar-siem/reviews)
  - [Jira](https://www.g2.com/products/jira/reviews)
  - [Microsoft Copilot](https://www.g2.com/products/microsoft-copilot/reviews)
  - [Notion](https://www.g2.com/products/notion/reviews)
  - [Papermark Virtual Data Room](https://www.g2.com/products/papermark-virtual-data-room/reviews)
  - [ServiceNow IT Service Management](https://www.g2.com/products/servicenow-it-service-management/reviews)
  - [Slack](https://www.g2.com/products/slack/reviews)
  - [Splunk Enterprise](https://www.g2.com/products/splunk-enterprise/reviews)
  - [suricata](https://www.g2.com/products/suricata/reviews)
  - [Webex Events & Webinars](https://www.g2.com/products/webex-events-webinars/reviews)

## GreyNoise Features
**Orchestration**
- Asset Management
- Security Workflow Automation
- Deployment
- Sandboxing

**Information**
- Proactive Alerts
- Malware Detection
- Intelligence Reports

**Personalization**
- Endpoint Intelligence
- Security Validation
- Dynamic/Code Analysis

**Generative AI**
- AI Text Summarization
- Generate Attack Scenarios
- Generate Threat Detection Rules
- Generate Threat Summaries

**Agentic AI - Threat Intelligence**
- Autonomous Task Execution
- Multi-step Planning
- Proactive Assistance
- Decision Making

## Top GreyNoise Alternatives
  - [Cloudflare Application Security and Performance](https://www.g2.com/products/cloudflare-application-security-and-performance/reviews) - 4.5/5.0 (580 reviews)
  - [CrowdStrike Falcon Endpoint Protection Platform](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews) - 4.6/5.0 (413 reviews)
  - [Recorded Future](https://www.g2.com/products/recorded-future/reviews) - 4.6/5.0 (225 reviews)