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Kevin Mandia's security startup Armadin raises $255.5 million

Original: Kevin Mandia's new 'agent swarm' security startup Armadin raises $255.5M at $2.5B valuation https://techcrunch.com/2026/

Kevin Mandia, founder of cybersecurity firm FireEye, has raised $255.5 million for his new security startup Armadin, valuing the company at $2.5 billion. The company is building an 'agent swarm' approach to security, using fleets of AI agents to defend systems. The large round and rapid valuation are drawing attention in the cybersecurity and venture communities.

Why now: The scale of the funding and Mandia's track record in cybersecurity make this a major startup story.

Kevin MandiaArmadinFireEyeTechCrunch

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• Kevin Mandia's new 'agent swarm' security startup Armadin raises $255.5M at $2.5B valuation https://techcrunch.com/2026/10/01/kevin-mandias-new-agent-swarm-security-startup-armadin-raises-255-5m-at-2-5b-valuation/ # Tech # Startups # Security · techcrunch@robot.villas · 2

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