Cyber Risks · GreyNoise Blog

Grey Noise Raises $15 Million in Series A Funding to Fight Cyber Distractions and Mass Vulnerability Exploitation

Summary: GreyNoise Intelligence raised a $15 million Series A round led by Radian Capital, with participation from CRV, Inner Loop, Stone Mill Ventures and Paladin Capital, bringing total funding to $21 million. The company uses a global network of passive sensors to collect, analyze and label data on IPs that scan and attack the internet, separating mass scanning noise from emerging threats for security teams.

Key Takeaway: The source states that mass internet scanning technologies let anyone with a computer scan all 4.2 billion IP addresses on the internet in 5-10 minutes, and that every internet-connected machine receives communications from tens of thousands of unique IP addresses per day - the volume that drives the alert fatigue GreyNoise says causes missed threats.

Read the original at GreyNoise Blog ↗

Topics
Detection & Response
Related
YARA-X 1.23.0 Release, (Sun, Nov 15th) Cyber Risks · Nov 15, 2026