MD

Maarten D.

Sr. Information Security Engineer

Small-Business (50 or fewer emp.)

1/21/2026

"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.

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. Review collected by and hosted on G2.com.

NP

Nicolas P.

Senior Manager, Infrastructure and Security

Small-Business (50 or fewer emp.)

2/5/2026

"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.

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. Review collected by and hosted on G2.com.

MH

Mark H.

Sr. Cybersecurity Analyst

Mid-Market (51-1000 emp.)

1/19/2026

"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.

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. Review collected by and hosted on G2.com.

LH

Leon H.

Security Operations Center Analyst

Mid-Market (51-1000 emp.)

2/22/2026

"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.

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. Review collected by and hosted on G2.com.

BM

Bhaveen M.

Cloud Security Engineer

Small-Business (50 or fewer emp.)

2/4/2026

"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.

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. Review collected by and hosted on G2.com.

MS

Matteo S.

Sr. Information Security Manager

Mid-Market (51-1000 emp.)

1/16/2026

"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.

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. Review collected by and hosted on G2.com.

DK

Dwight K.

SOC Analyst

Mid-Market (51-1000 emp.)

1/6/2026

"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.

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. Review collected by and hosted on G2.com.

DK

Derek K.

Cybersecurity Analyst

Mid-Market (51-1000 emp.)

2/25/2026

"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.)

1/13/2026

"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.

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. Review collected by and hosted on G2.com.

LC

Lincoln C.

IT Security Operations Asst.

Mid-Market (51-1000 emp.)

2/6/2026

"GreyNoise is the finest in the aspect of detecting endpoint threats and firewall config automation"

5/5

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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.