Kevin Mandia's Armadin raises $255.5M at a valuation above $2.5B

Armadin, the offensive security startup founded by Mandiant founder Kevin Mandia, raised a $255.5M Series B valuing it above $2.5B. Its AI agents probe customer environments to find and chain weaknesses into attack paths.

Armadin, the offensive security startup founded by Mandiant founder Kevin Mandia, raised a $255.5M Series B valuing it above $2.5B. Its AI agents probe customer environments to find and chain weaknesses into attack paths. (PR Newswire (via Webull); SecurityWeek; SiliconANGLE)

Andreessen Horowitz and Accel co-led the round, with new investors Bain Capital Ventures and Redpoint joining returning backers including GV, Kleiner Perkins, Menlo Ventures and In-Q-Tel. Armadin has now raised $445M in total and plans to spend on research, AI training and go-to-market. (PR Newswire (via Webull); SecurityWeek; SiliconANGLE)