GreyNoise is the source for understanding internet noise, helping security analysts reduce noisy alerts and discover emerging threats.

We collect, analyze and label data on IPs that saturate security tools with noise. This unique perspective helps analysts waste less time on irrelevant or harmless activity, and spend more time focused on targeted and emerging threats. This unique perspective helps our customers in three ways:

  1. Increased analyst efficiency: GreyNoise helps analysts recognize events not worth their attention. Indicators in GreyNoise are likely associated with opportunistic internet scanning or common business services, not targeted threats. This context helps analysts focus on what matters most.
  2. See emerging threats - Security teams can uncover tradecraft seen across the internet through our GreyNoise Query Language (GNQL). Our tags reveal IPs looking for and exploiting vulnerabilities. Security teams can assess their exposure as they monitor progressive threat activity.
  3. Uncover compromised devices - If we see your device scanning the internet, it's likely compromised. GreyNoise notifies analysts when an IP they care about shows up in our collection, helping security teams respond quickly to compromises.

GreyNoise’s internet-wide sensor network passively collects packets from hundreds of thousands of IPs seen scanning the internet every day. GreyNoise analyzes and enriches this data to identify behavior, methods and intent, giving analysts the context they need to take action. This insight is delivered through our API, integrations and visualizer.