---
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: '2026-08-07'
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 GreyNoise for its **ease of use** , simplifying IP reputation checks and enhancing threat management efficiency. (63 reviews)
- Users value the **automation** capabilities of GreyNoise, efficiently filtering threats and reducing alert fatigue. (54 reviews)
- Users value the **detailed context** GreyNoise provides on exploit attempts, enhancing threat identification and network protection. (44 reviews)
- Users value the **continuous threat detection** of GreyNoise, enhancing security and streamlining investigations effectively. (43 reviews)
- Users value the **real-time alerts** from GreyNoise, enhancing security by promptly addressing potential threats and malicious traffic. (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 experience **slow loading** times, especially when performing complex searches, which hinders their overall productivity. (15 reviews)
- Users face **dashboard issues** with limited enrichment data and struggles in monitoring multiple subsidiaries effectively. (8 reviews)
- Users find **integration issues** with GreyNoise, requiring extra effort to work well with various security tools. (8 reviews)
- Users experience **navigation issues** with GreyNoise, often requiring extra time and effort to find necessary information. (8 reviews)
- Users find the **inefficient alert system** burdensome, requiring complex configurations and frequently leading to excessive alert noise. (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. 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.

  ### 2. 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.

  ### 3. 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.

  ### 4. 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.

  ### 5. 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.

  ### 6. 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.

  ### 7. 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.

  ### 8. 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.

  ### 9. 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.

  ### 10. 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.

  ### 11. 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.

  ### 12. 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.

  ### 13. 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.

  ### 14. Powerful And Excellent Threat Detection Software.

**Rating:** 4.5/5.0 stars

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

**Reviewed Date:** February 09, 2026

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

I like GreyNoise because it is very user-friendly, and I like the way it automatically scans our systems and send alerts whenever a new vulnerabilities are identified. I also like how it supports faster security decisions and helps avoid overreacting to harmless internet behavior.

**What do you dislike about GreyNoise?**

There isn't anything that I like least about GreyNoise.

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

GreyNoise has great ISP scanning and CVE reporting hence giving us accurate threats results. Also, GreyNoise delivers efficient, reliable and comprehensive vulnerability management capabilities with fantastic IP scanning accuracy that shows IP addresses opportunistically scanning the internet and are a threat to our organization.

  ### 15. Access to actionable IP intelligence feed in real time to prevent network exploitation

**Rating:** 5.0/5.0 stars

**Reviewed by:** Kennedy K. | Sr. Information Security Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 31, 2025

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

The Feeds feature allows me to access near real-time visibility into attacker activity across the internet such as a CVE showing new exploitation activity. GreyNoise continuous IP classification helps me prioritize alerts, block newly confirmed threats and triggers automated playbooks when IPs shift to malicious.

**What do you dislike about GreyNoise?**

Nothing to dislike so far, it is reliable and takes just about 3 clicks to set up an alert for newly discovered IPs.

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

It helps with automated vulnerability response by enabling us to prioritize vulnerabilities that are actively exploited. The complete collection of events from IPs gives an exact timestamp of IP behavior helping us to protect the ports and protocols malicious IPs are currently scanning and exploiting.

  ### 16. GreyNoise Saves Me Hours Each Week by Filtering Out Junk Alerts.

**Rating:** 4.0/5.0 stars

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

**Reviewed Date:** September 23, 2025

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

I use GreyNoise to prescreen alert noise to get to relevant content. On a typical day, I use it with my SIEM alerts to see if an IP that is incoming is a mass scanner and nothing more. It is very useful in reducing false positives and as a result I no longer spend hours chasing noise. The context that it provides almost immediately is swift enough to make a decision. I can decide whether to escalate or if I can simply walk away.

**What do you dislike about GreyNoise?**

I sometimes feel that there are unnecessary streamlining interfaces. I have to navigate more than I want to and spend more time than required. I do wish that temporal lookups were faster when I need to go more than two weeks deep in my logs and I also still have to spend time investigating myself.

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

GreyNoise greatly diminishes the alert fatigue I experience by tagging noise that will not compromise my time and will rather protect my focus on the alerts which matter. It saves a lot of time every week and honestly, helps to lessen the stress on the time I spend on investigations. I no longer have to second guess every random IP that pops up.

  ### 17. The Most Efficient Way I Have Found to Determine If an Alert Is as Important as It Claims to Be.

**Rating:** 5.0/5.0 stars

**Reviewed by:** Nathan H. | President, Small-Business (50 or fewer emp.)

**Reviewed Date:** September 10, 2025

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

I utilize GreyNoise as an invaluable time saving tool and its very helpful in determining if an IP logging to my systems is worth my time or is just noise. Instead of spending time pursuing a false positive, I can initiate a cross-check of any suspicious activity, and in a moment, distinguish a mass of scanners that is visible to a few, and something that is unique to me. This helps me streamline my investigations and focus toward legitimate threats rather than sifting through a ton of irrelevant data.

**What do you dislike about GreyNoise?**

Once in a while, I wish that the information around specific IPs was a bit richer. I sometimes need more context around what specific steps the scanner was executing. I find the web tool somewhat of a pain, especially when I want to execute a number of queries in quick succession. I find myself having to rely on their API for bulk checks. It works well, although it takes more time to automate the surrounding steps. It’s not a dealbreaker, but it could be a bit more efficient.

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

Because of GreyNoise, I no longer spend time pursuing activities that are irrelevant, which, in turn, helps me instantaneously focus on the legitimate threats. It allows me to streamline my work, and is of great help when I need to determine the focus of my attention in the work environment.

  ### 18. GreyNoise: Speeds Up Threat Detection While Cutting Down SOC Noise.

**Rating:** 4.5/5.0 stars

**Reviewed by:** Armaghan S. | Digital Marketing Executive, Small-Business (50 or fewer emp.)

**Reviewed Date:** September 02, 2025

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

I learn to love GreyNoise for the same reason I truly hate modal cybersecurity noises false positives namely that when an alert does sound it will actually get noticed. A clear and easily adaptable interface along with strong integration makes this an easy product to get started with for my team. Be it, automatic EDR SOAR or any of the existing tools rich in alerts gives a boast to an over 90% faster incident response workflow.

**What do you dislike about GreyNoise?**

Some of the UI seems a little outdated, and the ridiculously small characters can make for tiring eyeball sessions in the long run. Once in a while, it doesn’t automatically load the data from our EDR; I have to cross-verify it myself, which breaks the flow. Ones that immediately come to mind would be AI-driven to increase the speed of identifying newly emerged threats-something Recorded Future is already dipping its toes into.

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

GreyNoise is like having the ability to very quickly filter out or distinguish between the background noise that is irrelevant or automated from the internet and what’s not, allowing the drowning free flow of useless alerts to be focused on real incidents. This has been a game-changer with large clients where daily event volumes used to overwhelm our SOC team.

  ### 19. Helps Me See What Really Matters in Our Alerts

**Rating:** 4.5/5.0 stars

**Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.)

**Reviewed Date:** October 27, 2025

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

One thing I really do value about GreyNoise is how it helps me see patterns and when a new payload has begun spraying across the internet well before our other tools have even raised a flag or when two campaigns start adopting each other’s methods. It’s my fast reality check before I escalate and it has rescued me from chasing unnecessary stuff far too many times to count.

**What do you dislike about GreyNoise?**

I sometimes want to see enrichment data go deeper and perhaps by displaying some context around new actors or linking out to threat reports from right within the dashboard. I also find the historical view a bit shallow when I’m trying to track activity over many months. And even though the API is powerful, it tends to chug a bit when I have to download huge swaths of data for retroactive review.

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

Our analysts were pissing hours clicking on shitty things before we took it and only to find mundain port scans and cimetary trash. But now we can investigate and close 80% of those alerts on the fly and therefore have freed up time to do more meaningful hunting or automated responses when it comes to inside jobs.

  ### 20. Very powerful for threat detection with exceptional accuracy as they emerge

**Rating:** 5.0/5.0 stars

**Reviewed by:** Nelson W. | Cyber Security Incident Responder, Mid-Market (51-1000 emp.)

**Reviewed Date:** December 05, 2025

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

GreyNoise implements rigorous internet monitoring for anomalous activity detecting botnet operators and malware, classifying attack patterns in a hierarchy based on common vulnerability exploitation methods enabling implementation of targeted detection and response strategies based on observed attack mechanisms.

**What do you dislike about GreyNoise?**

Nothing really, I have no complains about GreyNoise it does what it promises and I think even better.

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

It has blocked countless threats and attempts to access our network and we are able to pinpoint which systems face ongoing exploitation and therefore we prioritize patching based on actual exploitation evidence rather than just CVSS scores.

  ### 21. GreyNoise: My Favorite Tool for Boosting Threat Intelligence

**Rating:** 4.5/5.0 stars

**Reviewed by:** Abhinav S. | Senior Project Manager, Mid-Market (51-1000 emp.)

**Reviewed Date:** August 11, 2025

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

What I love most about GreyNoise is that it really does cut through the noise. Instead of drowning in endless alerts, it actually just reveals which IPs are just scanning the internet and which ones to really pay attention to. Its speed and accuracy have saved me so many hours; it would take a whole day to trace what often turned out to be false leads. Being able to act without leaping between platforms means I can immediately act, not leap.

**What do you dislike about GreyNoise?**

Sometimes, the interface feels a little cramped, and I wish some of the text was more readable without zooming in. I’ve also run into rare situations where an IP lookup took longer than expected during peak hours. An export feature for richer offline analysis would make my life even easier.

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

GreyNoise has completely changed how I approach incident triage. Instead of manually reviewing every suspicious IP from my logs, I can instantly filter out the harmless background noise of the internet. I’ve used other intel feeds in the past, but none have been this effective at separating signal from noise while still integrating so well into my existing workflows.

  ### 22. Efficient IP tagging detecting every threat to create impenetrable firewall

**Rating:** 5.0/5.0 stars

**Reviewed by:** Azahar M. | IT Security Operations Head, Mid-Market (51-1000 emp.)

**Reviewed Date:** November 03, 2025

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

The tagging system is very useful for grouping sets of unwanted IPs and therefore we are able to distinguish between benign and malicious traffic. It saves a lot of time by helping us prioritize real risks instead of bots and this also greatly reduces threat alert fatigue.

**What do you dislike about GreyNoise?**

I find GreyNoise works very well for our company, and in my opinion, it completely ensures my security on the internet so nothing to dislike at the moment.

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

Provides us with an early warning system on what is happening on the internet with actionable threat intelligence feeds that has helped us safeguard our network connections from security risks and cyber threats.

  ### 23. Efficient Threat Analysis with GreyNoise, but Interface Can Be Crowded

**Rating:** 5.0/5.0 stars

**Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.)

**Reviewed Date:** October 16, 2025

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

I mainly use GreyNoise to understand whether the strange traffic hitting our servers is anything to worry about or just some random internet traffic that isn't malicious or harmful to us. And when I’m checking firewall logs using GreyNoise, I can instead of running down each and every IP, I can determine very quickly what the benign scanners are versus the suspicious ones.

**What do you dislike about GreyNoise?**

Sometimes when I am tracking a very particular or new attack pattern I notice that data has not propagated everywhere and need to confirm manually. And the interface can also feel a little crowded when I’m filtering lots of queries at once which is particularly annoying on smaller screens.

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

GreyNoise helps me filter out the unnecessary traffic and significantly speeds up my investigative workflow and as a result I have to spend less time checking false positives and more time patching real security issues. So in other words, it keeps our alert system sane and my day from being a mess from all the unnecessary internet traffic.

  ### 24. Exciting high internet auto-scanning performance than other tools for threat elimination

**Rating:** 5.0/5.0 stars

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

**Reviewed Date:** November 20, 2025

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

Various features and functionalities that are significant in this tool is its ability to scan the internet and block all infectious websites from our system. It allows IP tagging and configuration to turn on/off individual IP threat notifications.

**What do you dislike about GreyNoise?**

There really isn’t anything I can complain about this tool. It works great and has never let us down.

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

We monitor the healthiness of each website in order to protect our network from phishing and it helped configure multiple firewall rules and ensure threat blocking worked as needed and that our domains are free from crawling.

  ### 25. Exceptional Threat Monitoring and Analysis—GreyNoise Sets the Standard

**Rating:** 5.0/5.0 stars

**Reviewed by:** Jackson M. | Information Systems Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** October 26, 2025

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

It has powerful monitoring capabilities useful in threat identification and enables me to  create alerts for specific domains and ISP to identify any kind threat or anomalies running on the internet. It efficiently monitors the log activities and gives results to any queries at faster speed than most threat intelligence tools.

**What do you dislike about GreyNoise?**

I haven’t had a bad experience, GreyNoise is the best in the field of emerging threat intelligence with great threat analysis combined with log analysis and deep search pattern.

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

With this, we have been able to detect and react in a timely manner to those events that represent possible threats to our systems and devices.

  ### 26. Robust solid defense against internet phishing sites and exploitation traffic

**Rating:** 5.0/5.0 stars

**Reviewed by:** Titus G. | SOC Specialist, Small-Business (50 or fewer emp.)

**Reviewed Date:** October 28, 2025

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

Very good at IP classification changes giving us immediate notice when an IP flips state, such as from unknown to malicious. The detection rate in detecting sites engaged in malicious activities is one of the highest because of its real time threat assessments.

**What do you dislike about GreyNoise?**

There is no any issue with its functionalities but it has some advanced settings that take some time to configure to achieve a robust scan by event type.

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

The platform reliably detects threats, alerts us right away and this enables us to apply correction capabilities and change security controls. This effectively saves workstations from threats and malicious attacks.

  ### 27. Effective smart analysis of the internet to enhance firewall governance

**Rating:** 5.0/5.0 stars

**Reviewed by:** Zain T. | Senior IT Support Engineer, Small-Business (50 or fewer emp.)

**Reviewed Date:** October 30, 2025

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

Very reliable at capturing comprehensive traffic logs to find suspicious activity on the internet with good IP filtering and the ways of dealing with threats are straightforward to a quick resolution.

**What do you dislike about GreyNoise?**

There is no area that raises negative functionality for me, and it has proved to be useful in assisting me to identify internet anomalies.

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

It is very useful in helping head off any network security threats, blocking websites that are likely to cause traffic congestion and make it easier to spot other signs of intrusion from IP addresses.

  ### 28. Helps me focus on real threats, not just random internet issues and noises

**Rating:** 4.0/5.0 stars

**Reviewed by:** Ian B. | Chief Technology Officer, Small-Business (50 or fewer emp.)

**Reviewed Date:** June 26, 2025

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

GreyNoise is like Cloudflare's lesser-known cousin, but with a superpower—it tells me when I don’t need to worry. I love how it filters out background internet noise, so I’m not chasing false threats or wasting hours investigating harmless scans. It makes it easy for me to tell right away if IPs are visiting my servers and if they are crawlers or real bad actors. The interface is clean, and integrating with SIEM tools is surprisingly straightforward.

**What do you dislike about GreyNoise?**

Pricing can be hard to figure out especially if you're a small team or an indie developer or even if you're a medium size business. Some of the deeper analytics and tagging feel locked behind paywalls that should be more accessible. Also, like Cloudflare, support responsiveness can be hit or miss unless you're on a higher-tier plan.

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

GreyNoise helps me cut through the noise—literally. Before using it, I used to waste a ton of time reacting to basic internet-wide scanners thinking they were targeted attacks. It has sped up and improved my threat triage, especially when combined with Cloudflare's WAF and rate restriction. They have worked together to cut down on false positives by a lot, which lets me focus on genuine threats that matter.

  ### 29. Accurate threat monitoring to only access compliant internet traffic

**Rating:** 5.0/5.0 stars

**Reviewed by:** Ravindra T. | IT Analyst, Mid-Market (51-1000 emp.)

**Reviewed Date:** November 02, 2025

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

I appreciate how it helps us monitor any spoofing made to domains and track IP configuration changes which has been very accurate in helping us to avoid malicious internet traffic.

**What do you dislike about GreyNoise?**

There are few times I have experienced poor response time while analyzing a large volume of log data subset.

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

Looking through logs and events makes it easier to monitor security and network compliance across multi-vendor environments helping us quickly spot phishing attempts, prevent data breaches, and ensure traffic aligns with our acceptable use policies.

  ### 30. Great reliability in containing malware outbreaks through real time internet scan

**Rating:** 5.0/5.0 stars

**Reviewed by:** Mark N. | Security Assessment Engineer, Mid-Market (51-1000 emp.)

**Reviewed Date:** November 05, 2025

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

Incredibly powerful and intelligent in threat detection, uses a bare minimum of system resources, and very effective at tagging IP addresses that have been observed sending web requests that contain out-of-band interaction domains.

**What do you dislike about GreyNoise?**

Although network monitoring is very effective, there is some room for improvement in terms of graph interpretation.

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

Informs us of latest malware with overall visibility on IP addresses and with this information we are able to perform very actual and robust security configurations on our servers and computers.

  ### 31. Reliable Context for IP Analysis with Small UI and Workflow Frictions

**Rating:** 4.0/5.0 stars

**Reviewed by:** Vinayak S. | Program Manager, Enterprise (> 1000 emp.)

**Reviewed Date:** June 17, 2025

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

What I like most about GreyNoise is how it helps me quickly differentiate between harmless internet noise and potentially targeted activity. The interface is clean and easy to navigate, which makes searching IPs and reviewing context very straightforward. I especially appreciate the rich metadata they provide on noisy IPs, things like classifications, tags and historical activity make it easier to decide whether something is worth investigating further. Their visualizations, like timelines and tag breakdowns, give a helpful snapshot without needing to dig through raw logs. I use it regularly to support incident investigation and reduce alert fatigue, and it definitely helps save time by filtering out irrelevant traffic.

**What do you dislike about GreyNoise?**

While GreyNoise is incredibly helpful for filtering out irrelevant noise from internet background traffic, there are a few areas that could improved. One challenge I face is that the data granularity sometimes feels a bit limited when I'm trying to investigate a specific pattern or need more context around an IP's behavior. Additionally, the search interface could be more flexible when handling bulk queries or custom filters. Lastly, while their enrichment is solid, deeper integrations with other security tools I use daily would help streamline the investigation process even more.

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

GreyNoise helps solve the constant problem of distinguishing legitimate threats from noisy background internet scans or irrelevant traffic. In my role, we receive a high volume of security alerts, and not all them deserve deep investigation. GreyNoise helps me and my team quickly determine whether an IP is part of widespread internet scanning or something more targeted. This reduces the time spent chasing false positive, improves our team's efficiency, and allows us to focus our energy on incidents that actually matter to our infrastructure. It's also useful for validating whether certain activity requires blocking or further escalation.

  ### 32. A game changer for threat hunting

**Rating:** 5.0/5.0 stars

**Reviewed by:** Utkarsh  K. | Project Manager, International Trade and Development, Enterprise (> 1000 emp.)

**Reviewed Date:** April 08, 2025

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

At BSI we constantly deal with a high level of complex threat landscape. This is where GreyNoise helped us to cut through the internet background traffic security and detection. I love how it speeds up the process around detection and investigation and helps us reduce false positives in our SIEM. Quite easy to integrate with copilot which massively helped.

**What do you dislike about GreyNoise?**

No complaints as such, occasionally we run into IPs or scanning behaviour that isnt tagged or lacks full context. less scope of customisation around threat detection and anomaly limits the use case. Customer service is decent and could be better.

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

At BSI, the major problems we faced were of alert overload caused by irrelevant internet scans. We ended up wasting a lot of time in hunting, analysing and investigating IP which turned out to be a cost heavy process. With Greynoise, it helps us in instantly eliminate all the delay with its accuracy and strong intelligent backend detection. It saves us cost and time and helps us prioritise threats which actually needs a response.

  ### 33. Great and reliable vulnerability scanner

**Rating:** 5.0/5.0 stars

**Reviewed by:** Kenneth C. | Database Administrator, Mid-Market (51-1000 emp.)

**Reviewed Date:** October 07, 2025

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

The speed at which it scans IPs for vulnerabilities is impressive and automated scans for fingerprinting are very friendly to setup.

**What do you dislike about GreyNoise?**

I don’t think there is anything I don’t like so far. GreyNoise results are highly informative.

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

Provides very reliable insight into network vulnerabilities which helps to find threats and facilitates remediation of identified issues.

  ### 34. A must have tool for external threat intelligence and brand protection

**Rating:** 4.5/5.0 stars

**Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.)

**Reviewed Date:** June 08, 2025

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

What I like most about GreyNoise is its ability to give real-time visibility into threats targeting our organization from the external internet, especially social media, the dark web, and impersonating domains. It genuinely feels like having a security analyst working 24/7, surfacing things our internal tools would never catch. The escalated alerts also helps my team to rapidly prioritize actual threats without wasting time on false positives and I personally value the committed assistance from GreyNoise, since it helps to optimize our alerting and reduce noise.

**What do you dislike about GreyNoise?**

The UI can be quite confusing and complex to understand at first, especially when trying to navigate historical alert data or set custom filters. Setting up policies and rules was initially frustrating until I relied more on my TAM and the training materials. Additionally, the custom date range feature in reports is clunky and slows down my workflow unnecessarily.

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

GreyNoise helps me detect and respond to threats across the public attack surface like fake social media accounts, malicious lookalike domains, and leaked credentials and without having to manually search for them. It’s also solved our pain point around monitoring executive impersonations and automated the takedown process, which used to consume our legal team’s time and since we started using the tool, we’ve gone from being reactive to threats to proactively reporting to stakeholders before any damage can occur. I've explored alternatives like Recorded Future and Digital Shadows, but GreyNoise’s ease of reporting and responsiveness of support has made it my preferred choice.

  ### 35. Fast and precise threat detection ensuring intelligence is always fresh

**Rating:** 5.0/5.0 stars

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

**Reviewed Date:** October 28, 2025

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

Great tool that meets the speed and precision required to detect and auto-block mass internet scanners and exploit attempts within seconds of detection.

**What do you dislike about GreyNoise?**

No major cons in my opinion although it can be a bit challenging to track logs from mobile browser but I haven’t experienced any issues with the tool.

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

We are able to narrow in on the malicious network traffic, monitoring attacker targeting vulnerability flaws and blocking malicious IPs through rapid responses.

  ### 36. Quick decision with GreyNoise

**Rating:** 4.5/5.0 stars

**Reviewed by:** Josh A. | Consultant Developer, Small-Business (50 or fewer emp.)

**Reviewed Date:** August 08, 2025

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

I like GreyNoise because it provides actionable intelligence real-time. It helps to identify a IP address is a mass internet scan or a targeted attack.

**What do you dislike about GreyNoise?**

Integrating GreyNoise with older security tools required custom scripting.

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

GreyNoise helps to identify what a specific IP is doing. With its help we can filter out noise, which helps to reduce our false positive and helps us to investigate true threat faster and efficiently.

  ### 37. GreyNoise: Smart Context to Cut Through Noise and Boost SOC Efficiency

**Rating:** 4.5/5.0 stars

**Reviewed by:** Verified User in Information Technology and Services | Enterprise (> 1000 emp.)

**Reviewed Date:** June 17, 2025

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

What I value most is GreyNoise’s ability to distinguish between truly malicious traffic and wide, non-targeted scanning activity. The rapid classification of IPs helps us prioritize alerts with real-world context. It also integrates well with our SIEM and threat intelligence tools, enriching data with actionable insights.

**What do you dislike about GreyNoise?**

The amount of historical data available in the standard version is limited, which can impact deeper retroactive investigations.

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

GreyNoise helps us solve one of the most common and time-consuming problems in security operations: alert fatigue caused by noisy, non-targeted internet background traffic. By identifying IPs involved in mass scanning or opportunistic activity, GreyNoise allows us to confidently deprioritize irrelevant alerts.

This has significantly reduced false positives, accelerated our triage process, and freed up our analysts to focus on real threats. It also adds valuable context to investigations, improving decision-making and reducing response time.



- [View GreyNoise pricing details and edition comparison](https://www.g2.com/products/greynoise/reviews?filters%5Bsentiment_snippet%5D=2061213&qs=pros-and-cons&section=pricing&secure%5Bexpires_at%5D=2026-08-14+17%3A32%3A50+-0500&secure%5Bsession_id%5D=9d3d242b-cd6d-4194-b132-d618f5fb8233&secure%5Btoken%5D=66b8c6816b1f50cb4ef535dc55199a62a69359ed24e512fd7240cf789f9ac7f3&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)
  - [Jira](https://www.g2.com/products/jira/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
- Remediation Management

**Information**
- Proactive Alerts
- Malware Detection
- Intelligence Reports
- Threat Intelligence
- Real-time Alerts

**Personalization**
- Endpoint Intelligence
- Security Validation
- Dynamic/Code Analysis
- Event Analysis
- Web-Application Security
- Application Security

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

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

**Additional Functionality**
- Real-Time Reporting
- Real-Time Analytics
- Network Monitoring
- API
- Reporting/Analytics
- Alerts/Notifications
- Behavior Analytics
- AI Copilot
- Activity Dashboard
- Profiling
- Cloud Backup
- Data Visualization
- Activity Monitoring
- Network Scanning
- Event Logs
- Monitoring
- Server Monitoring
- Vulnerability Scanning
- Incident Reporting
- Activity Tracking
- Reporting & Statistics
- Network Provisioning
- Prioritization
- Threat Response
- Real-Time Data
- IT Reporting

## Top GreyNoise Alternatives
  - [Cloudflare Application Security and Performance](https://www.g2.com/products/cloudflare-application-security-and-performance/reviews) - 4.5/5.0 (685 reviews)
  - [CrowdStrike Falcon Endpoint Protection Platform](https://www.g2.com/products/crowdstrike-falcon-endpoint-protection-platform/reviews) - 4.6/5.0 (418 reviews)
  - [Recorded Future](https://www.g2.com/products/recorded-future/reviews) - 4.6/5.0 (225 reviews)