--- 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 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. ### 2. 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. ### 3. 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. ### 4. GreyNoise: Cutting Through Internet Clutter for Identifying Real Threats **Rating:** 4.0/5.0 stars **Reviewed by:** Praneeth V. | Senior Project Manager, Mid-Market (51-1000 emp.) **Reviewed Date:** August 18, 2025 **What do you like best about GreyNoise?** I really like GreyNoise for the way it shields my vision of the internet; it sifts out all that background noise and lets me concentrate on actual threats instead of running around after benign scanners. The fact that it was easy to integrate was a huge advantage; I was able to incorporate it into my workflows without much trouble. Their dashboard is user-friendly and provides me instant information without making me read a heap of jargon. **What do you dislike about GreyNoise?** At times, the pricing tiers can be confusing, and I would like them to be clearer on usage limits. Much like Cloudflare, GreyNoise can at times be almost ‘too simple’ on first use, leaving some advanced features not quite so obvious to power users. I would love to see more options for filtering and alerting, though, so that it speaks more to techies that like fine-tuning. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise helps in avoiding too many alerts by drowning out background noise from broad scanners. I used to spend hours chasing down benign IPs before this. Now I can confidently filter them out. Compared to something like Shodan or ThreatMiner, GreyNoise feels built for the purpose: cutting noise and directly translates into saved time and peace of mind. ### 5. GreyNoise is my go-to for keeping email threats under control with precision and reliability. **Rating:** 4.0/5.0 stars **Reviewed by:** Milind N. | Vice President of Sales and Recruiting, Enterprise (> 1000 emp.) **Reviewed Date:** July 30, 2025 **What do you like best about GreyNoise?** I really like how GreyNoise helps me filter out phishing and malware-laden emails before they even hit my users’ inboxes. It has great impersonation protection that catches spoofed “CEO fraud” attempts that I’ve seen bypass other tools. I also like the Data Loss Prevention capabilities because they have stopped me from accidentally leaking information more than once. After the initial setup, it has essentially run itself, which has allowed me to concentrate on bigger IT jobs. **What do you dislike about GreyNoise?** It can be a little too severe with filtering URLs and domains, marking real links as suspicious. I’ve had a few users complain about having to resend documents after emails were mistakenly blocked. The admin dashboard is powerful but not the most intuitive, so I had to spend some time figuring out how to set policies correctly. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise has cut down on the number of phishing, malware, and spam emails that my team gets by a lot. It’s also cut down on distractions since we don’t get as many unsolicited emails interrupting our workday. I feel much more in control and at ease knowing that I can look into suspicious emails before sending them. Compared to alternatives like Mimecast and Proofpoint, I’ve found GreyNoise’s combination of threat detection and user flexibility strikes a good balance for my law firm’s security needs. ### 6. Comprehensive and Actionable Threat Intelligence with GreyNoise **Rating:** 4.0/5.0 stars **Reviewed by:** Sam A. | CEO, Small-Business (50 or fewer emp.) **Reviewed Date:** July 14, 2025 **What do you like best about GreyNoise?** What I personally love about GreyNoise is that it feels like having a filter for internet junk traffic—something I didn’t realize I needed until I used it. Before GreyNoise, I wasted hours chasing random IPs scanning my network, only to find out they were harmless internet background noise. Now, my dashboard shows me what actually matters, and honestly, that’s saved my sanity more than once during a hectic day. **What do you dislike about GreyNoise?** What frustrates me sometimes is when the same type of alerts clutter my screen repeatedly, especially during scanning spikes. I’ve also noticed it struggles a bit when integrating with some of our older tools—we had to write custom scripts just to get things talking properly. And like every tool, it’s not perfect at filtering false positives—domain registration alerts especially feel like a recurring headache. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise solved a problem I didn’t even know I had: wasting time on background noise that wasn’t a real threat. It lets me focus only on what’s actually targeting us, whether that’s compromised IPs or bots acting strangely, and that has genuinely made me more productive. Compared to tools like SOCRadar, which throws a ton of data at me, GreyNoise feels like someone quietly whispering, “Ignore that, focus here”—and that’s invaluable when your day is full of real threats. ### 7. 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. ### 8. 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. ### 9. GreyNoise knows what’s just noise and that’s exactly what I needed **Rating:** 4.0/5.0 stars **Reviewed by:** Nishant K. | Lead Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** June 11, 2025 **What do you like best about GreyNoise?** What I like most about GreyNoise is how it filters out internet "background noise" so I can focus on real, targeted threats. It drastically lowers alert alerts by marking various scanners and useless traffic, therefore cutting through the noise. I love the simplicity of the dashboard — I can investigate IPs in seconds and get enriched context like actor behavior, scanning patterns, and intent. It saves me hours every week that I used to spend manually triaging false positives. **What do you dislike about GreyNoise?** Some of the tags could be a bit more descriptive, especially for newer or low-confidence IP classifications. Occasionally, I find there's a lack of historical context for some behaviors, making it harder to assess long-term risk trends. I wish it had tighter integration with some niche or legacy tools we still rely on internally. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise helps us solve the problem of alert overload by identifying noise we can safely ignore — something no other tool does as well. Before using it, we were burning time chasing irrelevant alerts from scanners or commodity malware. Now, we can rapidly target threats that are actually targeting our assets and this shift has strengthened our proactive defense posture, improved SOC efficiency, and drastically reduced the time to respond to true incidents. ### 10. I stopped worrying about security thanks to GreyNoise **Rating:** 4.0/5.0 stars **Reviewed by:** John S. | Software Engineer, Small-Business (50 or fewer emp.) **Reviewed Date:** June 04, 2025 **What do you like best about GreyNoise?** I find GreyNoise very appealing since it aligns with the real way I use my devices, especially as a person who signs up on lots of new websites, learns Python, and downloads scripts and datasets from all over the web. It’s not just some background AV application, but actively filters out those fishy ips, secures my inbox and keeps an immaculate work zone without me having to look for spam. **What do you dislike about GreyNoise?** GreyNoise makes it way too often to enforce me legitimate tasks without letting me know why like downloading code snippets or tools that I really need, which is the biggest issue I run into. On several occasions, it has even hung my machine post-upgrades, which can be quite irritating when I am in the middle of focused work or online classes. Honestly, the sheer number of features and the fairly steep learning curve initially left someone not working in a large IT department feeling a bit lost. **What problems is GreyNoise solving and how is that benefiting you?** I heavily rely on GreyNoise. It gives me confidence while exploring the web for coding resources, signing up on platforms with my email, running Python scripts, and not constantly worrying about getting phished or infected. Automated investigation and remediation features are like a second brain presence that reacts to threats faster than I ever could and has come to my rescue more than once. ### 11. GreyNoise Makes My Job Easier by Telling Me What Not to Worry About **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** July 08, 2025 **What do you like best about GreyNoise?** What I like best about GreyNoise is how it filters out background internet noise, helping me focus only on actionable threats. It’s like having a global radar that tells me whether an IP is scanning everyone or just targeting me. I really appreciate the real-time context it provides around suspicious activity — it saves me hours of manual analysis. **What do you dislike about GreyNoise?** Sometimes GreyNoise can be a bit limiting if you're not subscribed to its full feature set, especially when trying to do deeper threat hunting. The UI, while functional, could be more intuitive for newer analysts. Also, there are moments when attribution data feels sparse — I find myself cross-referencing with other platforms like Shodan or VirusTotal. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise helps me reduce alert fatigue by telling me which IP addresses are simply scanning the internet indiscriminately — not actually attacking us. This difference is very important for putting threats in order of importance, and it has made my team's response time to incidents much faster. Without GreyNoise, we’d spend far more time chasing irrelevant alerts and misidentifying noise as signal. ### 12. GreyNoise Intelligence: internet noise filtering for threat prioritization **Rating:** 3.5/5.0 stars **Reviewed by:** Luca P. | Chief Operations Officer DEQUA Studio | Formerly CTO in MarTech, Marketing and Advertising, Small-Business (50 or fewer emp.) **Reviewed Date:** July 06, 2025 **What do you like best about GreyNoise?** ▪️ Filters out internet background noise, tagging IPs by behavior and threat context. ▪️ Real-time monitoring of global scan activity and emerging threats. ▪️ Integrates with SIEM, SOAR, TIP, and offers a robust API. ▪️Features for historical IP analysis and pattern recognition. **What do you dislike about GreyNoise?** ▪️ UI can be complex; key info sometimes hard to find. ▪️Limited integration with niche or legacy tools. ▪️No native remediation; API customization can be challenging. ▪️Pricing may be high for smaller teams. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise has helped me address the challenge of constant alert fatigue by filtering out the bulk of irrelevant internet scans and background noise. This means I am not distracted by generic or harmless activity and can focus my attention where it actually matters. The additional context and enrichment GreyNoise provides for IP addresses make my investigations more efficient and accurate, as I spend less time chasing false positives. 👉 Overall, this has streamlined my SOC workflow, allowing me to prioritize and respond to real threats more effectively. ### 13. GreyNoise Turns Raw Internet Noise into Laser‑Focused Security Insights **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** June 30, 2025 **What do you like best about GreyNoise?** The standout for me is how GreyNoise transforms random scanning traffic into a live “background soundtrack” I can replay against my own logs—an instant reality check on whether my EDR and firewall rules are tuned correctly. I save entire afternoons because the platform tags commodity scanners and exploitation frameworks the moment they hit the wire, so I can zero in on anomalies that aren’t just internet chatter. **What do you dislike about GreyNoise?** Once you start monitoring multiple subsidiaries, the dashboard struggles—tenant‑level roll‑ups are tucked away and CSV export becomes the only realistic way to build enterprise reports. Role‑based access is still coarse; I can’t give our MSSP “read‑only except tags” without burning a full seat. Cloud‑specific noise (think ephemeral AWS scanner fleets) sometimes lags, forcing me to check Shodan or Censys for the last mile of context. **What problems is GreyNoise solving and how is that benefiting you?** GreyNoise slices 35–50 % of pure “internet weather” out of my SIEM, so my SOC spends time on threats aimed at us, not the whole planet. By continuously validating that our controls fire on the meaningful 1 % of traffic, it turns security from a quarterly audit into a living process and gives me measurable assurance before every board meeting. ### 14. great data but should be more useful **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Banking | Enterprise (> 1000 emp.) **Reviewed Date:** March 13, 2025 **What do you like best about GreyNoise?** the wealth of information regard every IP addresses and the ability to find quickly The common denominator between different addresses during that participated in DDoS attack. **What do you dislike about GreyNoise?** the whole product is about IP addresses and nothing more. **What problems is GreyNoise solving and how is that benefiting you?** the problem of lack of data regard IP addresses and the ability to clean effectivaly the data of our FireWall. - [View GreyNoise pricing details and edition comparison](https://www.g2.com/products/greynoise/reviews?filters%5Bnps_score%5D%5B%5D=4§ion=pricing&secure%5Bexpires_at%5D=2026-08-12+14%3A53%3A17+-0500&secure%5Bsession_id%5D=d4698394-0e2f-4af4-93ca-a10300bd516d&secure%5Btoken%5D=aefaa2f3fadc1e70632d74a5e388df7e00b26bc583caee499380471897870ed3&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 (662 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)