techcrunch.com
Oct 1, 2026
Kevin Mandia’s new ‘agent swarm’ security startup Armadin raises $255.5M at $2.5B valuation
AI-summarised brief · reviewed before publication
Kevin Mandia, former founder of Mandiant, has secured $255.5 million in a Series B round for his new cybersecurity venture, Armadin, valuing the company at over $2.5 billion. The funding was led by Andreessen Horowitz and Accel, with participation from Bain Capital Ventures, Redpoint, 8VC, Ballistic Ventures, Google Ventures, In‑Q‑Tel, Kleiner Perkins, and Menlo Ventures. Armadin, which raised $190 million in March, now totals more than $445 million in capital. The firm offers enterprises an “always‑on” security model that deploys agentic swarms to continuously probe and patch vulnerabilities, aiming to preempt attacks from both human hackers and autonomous AI agents.
💡 Why It Matters
- · By shifting from periodic penetration tests to continuous, swarm‑based threat hunting, Armadin could redefine how organizations detect and remediate security gaps, potentially setting a new industry standard for proactive defense.
