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GreyNoise Intelligence

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GreyNoise is a cybersecurity company based in the United States that provides real-time network threat intelligence.

Last updated September 11, 2026

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Overview

GreyNoise is a cybersecurity company based in the United States. Its stated mission is to collect diverse primary scanning and exploitation data and transform it into actionable intelligence for defenders. The company offers the GreyNoise Platform for real-time edge detection and response, and GreyNoise Block for configurable real-time blocklists.

History

GreyNoise is a cybersecurity company based in the United States. Its stated vision is that no attack works twice, and its mission is to collect the most diverse primary scanning and exploitation data and transform it into the most actionable intelligence for defenders.

Products and positioning

Real-time network threat intelligence for edge detection and response.

  • GreyNoise Platform

    The Intelligence Platform for Real-Time Edge Detection & Response; allows users to investigate any IP or CVE, catch threats hitting their edge, and turn intelligence into automated action.

  • GreyNoise Block

    Fully configurable, real-time blocklists that turn primary-source edge intelligence from the Global Observation Grid into precision blocklists for firewalls.

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