Mandiant Founder Raises $190M for Autonomous AI Security Startup

Cybersecurity veteran Kevin Mandia launches Armadin to combat AI-powered cyberattacks.

Published on Mar. 10, 2026

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Kevin Mandia, the founder of cybersecurity firm Mandiant which was acquired by Google for $5.4 billion in 2022, has launched a new AI-focused security startup called Armadin. The company has raised a record-breaking $189.9 million in combined seed and Series A funding to develop autonomous cybersecurity agents that can learn and respond to threats without human intervention.

Why it matters

Mandia believes that AI-powered cyberattacks are on the horizon, and Armadin aims to provide security experts with their own automated 'agentic armies' to combat these emerging threats. The significant funding round highlights the growing concerns around the potential risks of AI being used for malicious purposes and the need for innovative security solutions to stay ahead of the curve.

The details

Armadin was co-founded by Mandia, former Google Cloud Security principal engineer Travis Lanham, former Mandiant executive Evan Peña, and former Google SecOps engineer David Slater. The funding round was led by Accel, with participation from GV, Kleiner Perkins, Menlo Ventures, 8VC, Ballistic Ventures, and the CIA's venture arm, In-Q-Tel.

  • Mandia founded Mandiant in 2004.
  • Mandiant was acquired by Google for $5.4 billion in 2022.
  • Mandia launched Armadin in 2026.

The players

Kevin Mandia

The founder of cybersecurity firm Mandiant, which was acquired by Google for $5.4 billion in 2022. Mandia is now the founder of the new AI-focused security startup Armadin.

Armadin

A new AI-native cybersecurity startup founded by Kevin Mandia and others, which has raised a record-breaking $189.9 million in combined seed and Series A funding.

Accel

The venture capital firm that led the funding round for Armadin.

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What they’re saying

“When you have AI on offense, what you are going to get is a technology that can think, can learn, can adapt.”

— Kevin Mandia, Founder, Armadin (CNBC)

What’s next

Armadin plans to use the funding to further develop its autonomous cybersecurity agents and expand its team to combat the growing threat of AI-powered cyberattacks.

The takeaway

Mandia's new venture highlights the increasing concerns around the potential misuse of AI for malicious purposes, and the need for innovative security solutions to stay ahead of these emerging threats. Armadin's record-breaking funding round underscores the urgency and importance of this challenge.