GreyNoise Reviews (129)

Reviews

GreyNoise Reviews (129)

4.8
129 reviews

What do users say?

Generated using AI from real user reviews
Users consistently praise GreyNoise for its clear IP behavior insights and ability to reduce alert fatigue, making it easier to identify whether suspicious activity is routine or requires immediate action. The platform's contextual intelligence helps streamline investigations, allowing teams to focus on real threats without getting bogged down by noise. However, some users note that the interface can feel crowded, especially during high-volume investigations.

Pros & Cons

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AP
Antonio P.
Cyber Security Specialist
Mid-Market (51-1000 emp.)
"Quick detection of compromised URLs and exploitable vulnerabilities across all endpoints"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

MD
Maarten D.
Sr. Information Security Engineer
Small-Business (50 or fewer emp.)
"GreyNoise delivers reliable risk visibility and clear threat insights to keep patch status updated"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

NP
Nicolas P.
Senior Manager, Infrastructure and Security
Small-Business (50 or fewer emp.)
"A great platform for instant threat blocking and automated patching across all our operating systems"
5/5
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. Review collected by and hosted on G2.com.

What do you dislike about GreyNoise?

I have not experienced any issues using GreyNoise and it effectively provides fantastic vulnerability management for our organization. Review collected by and hosted on G2.com.

MH
Mark H.
Sr. Cybersecurity Analyst
Mid-Market (51-1000 emp.)
"Easy to implement, vulnerability scanning is excellent and malicious IP blocking is super accurate"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

LH
Leon H.
Security Operations Center Analyst
Mid-Market (51-1000 emp.)
"Effective IP Behavior and Links Performance Monitoring For a Clear Network Flow Visualization"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

BM
Bhaveen M.
Cloud Security Engineer
Small-Business (50 or fewer emp.)
"Extremely fast IP scans to surface malicious mass scanning targeting our network"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

MS
Matteo S.
Sr. Information Security Manager
Mid-Market (51-1000 emp.)
"Concise and thorough during threat assessment with a swift blocking of detected malware"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

DK
Dwight K.
SOC Analyst
Mid-Market (51-1000 emp.)
"Great threat intelligence tool offering custom remediation plans prioritized for our environment"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

DK
Derek K.
Cybersecurity Analyst
Mid-Market (51-1000 emp.)
"GreyNoise Delivers Accurate Threat Alerts and Very Efficient Malicious IP Monitoring"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

NT
Nicholas T.
Cloud Security Engineer
Mid-Market (51-1000 emp.)
"Visualizing network risks with thorough vulnerability information and IP scans"
5/5
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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.