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GreyNoise

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129 reviews
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Average star rating
4.8
Serving customers since
2017
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GreyNoise

129 reviews

GreyNoise is a cybersecurity platform that collects, analyzes, and classifies internet-wide scan and attack traffic to help security teams distinguish between benign and malicious activities. By leveraging a global network of passive sensors, GreyNoise identifies IP addresses involved in mass scanning and categorizes them based on intent, enabling organizations to reduce false positives and focus on genuine threats. This approach enhances the efficiency of Security Operations Centers (SOCs by filtering out irrelevant alerts and providing actionable intelligence on emerging threats. Key Features and Functionality: - Real-Time Threat Intelligence: Provides up-to-date information on internet scanning activities, allowing security teams to respond swiftly to potential threats. - IP Classification: Categorizes IP addresses as benign, suspicious, or malicious based on their behavior, aiding in accurate threat assessment. - Vulnerability Prioritization: Offers insights into active in-the-wild exploitation of vulnerabilities, assisting teams in prioritizing patching and remediation efforts. - Integrations: Seamlessly integrates with existing security tools and platforms, enhancing the overall security infrastructure. - Advanced Analytics: Utilizes data science techniques and AI to process vast amounts of data, providing meaningful insights and reducing alert fatigue. Primary Value and Problem Solved: GreyNoise addresses the challenge of alert fatigue faced by security teams due to the overwhelming volume of false positives generated by security tools. By filtering out internet background noise and focusing on relevant threats, GreyNoise enables organizations to: - Enhance Efficiency: Reduce the time spent investigating non-threatening alerts, allowing teams to concentrate on critical issues. - Improve Threat Detection: Identify and respond to emerging threats more effectively with real-time, actionable intelligence. - Optimize Resource Allocation: Prioritize vulnerability remediation efforts based on active exploitation data, ensuring resources are directed where they are needed most. By providing a clear distinction between benign and malicious internet activities, GreyNoise empowers security teams to act with speed and confidence, ultimately strengthening an organization's cybersecurity posture.

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GreyNoise Reviews

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Ignacio D.
03/03/2026
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Verified Current User
Review source: Seller invite
Incentivized Review

GreyNoise: Concrete Vulnerability Intelligence to Prevent Risks Before Threats Materialize

GreyNoise has been a complete vulnerability management tool invaluable in strengthening security across our environment by offering strong analysis of network traffic pattern and complete exposure monitoring. It is great at assessing and prioritizing risks across all our attack surfaces long before any attack attempts.
Verified User in Philanthropy
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Verified User in Philanthropy
03/03/2026
Validated Reviewer
Review source: Seller invite
Incentivized Review

Fast, Simple Noise Triage That Saves Us Time

What I love about GreyNoise is how quickly and easily the search tells us, that the traffic is just background internet noise or something we should forward to the team. That alone has saved us so many unnecessary tickets and saved us a lot of time. The interface is simple to use and lookups and the context area for each origin gives us exactly what we need to understand.
RV
Rafael V.
03/02/2026
Validated Reviewer
Verified Current User
Review source: Seller invite
Incentivized Review

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

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

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HQ Location:
Washington, D.C.

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@GreyNoiseIO

What is GreyNoise?

GreyNoise empowers the security teams of enterprises and global governments to act with speed and confidence by providing real-time, verifiable perimeter-based threat intelligence. This allows security teams to reduce noise in security operations, perform in-depth threat hunting campaigns, and focus on the most critical threats to their network. Our patented sensor technology enables us to collect and analyze unique threat data at-scale that no one else can. We provide the most actionable threat intelligence against mass internet scanning and exploitation, so that no attack works twice. For more information, please visit www.greynoise.io.

Details

Year Founded
2017