Mandiant Founder Returns With AI Cyber Startup, Raises $190M

Kevin Mandia sold his cybersecurity firm Mandiant to Google for $5.4 billion four years ago. Now he's back — and ironically, Google's in his corner again.

Mandia's new venture, Armadin, is an AI cybersecurity startup focused on building AI agents. The company just pulled in roughly $190 million in funding led by Accel.

It's a massive raise that signals serious investor appetite for AI-native security tools. Mandia built Mandiant into one of the most respected names in threat intelligence before Google scooped it up. Betting against him a second time seems unwise.

Armadin sits at the intersection of two white-hot markets: AI and cybersecurity. With autonomous agents becoming the new frontier, having battle-tested cyber expertise behind the wheel matters more than ever.