Armadin Raises $255.5M for AI Attackers

Armadin, led by Mandiant founder Kevin Mandia, raised $255.5 million in Series B funding co-led by Andreessen Horowitz and Accel, valuing the autonomous cybersecurity startup above $2.5 billion just seven months after emerging from stealth. Its AI agents simulate attacks to find exploitable paths. Total funding now reaches $445 million.