Mandia's Armadin raises $190M to fight AI hackers

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- Armadin raised $189.9 million in combined seed and Series A funding led by Accel, with participation from GV, Kleiner Perkins, Menlo Ventures, 8VC, Ballistic Ventures, and In-Q-Tel (the CIA's venture arm); the company claims the combined total is a record for a security startup at that early stage, though it isn't disclosing its valuation.
- Kevin Mandia founded Armadin after founding Mandiant in 2004 and selling it to Google for $5.4 billion in 2022, and most recently serving as a VC at Ballistic Ventures, the security specialist fund co-founded by Ted Schlein.
- Armadin is building autonomous cybersecurity agents — software designed to learn and respond to threats without a human in the middle — to give defenders their own 'agentic armies' against AI-powered attackers.
- Mandia warned that autonomous AI hackers are coming and that they will be able to complete attacks in minutes that used to take days, echoing warnings from security researchers and government agencies that AI is already lowering the bar for sophisticated attacks.
- Armadin's co-founders are former Google Cloud Security principal engineer Travis Lanham, former Mandiant exec Evan Peña, and former Google SecOps engineer David Slater.
- The funding round stands out because other startups that raised ~$200 million Series A rounds, such as 1Password and OneTrust, were already years old and in growth mode — Armadin pulled it off 'out of the gate.'
Why it matters: Mandia — who already exited Mandiant to Google for $5.4 billion — is now betting $189.9 million, backed by the CIA's In-Q-Tel, that AI-powered attacks will define the next era of cybersecurity and that defenders need autonomous agents of their own to keep up, with all three co-founders drawn from Google and Mandiant's security ranks.

