Kevin Mandia’s new ‘agent swarm’ security startup Armadin raises $255.5M at $2.5B valuation

Kevin Mandia's cybersecurity startup Armadin raised $255.5 million in a Series B at a valuation above $2.5 billion, bringing total funding to more than $445 million. Armadin offers an "always-on" security service that uses agentic swarms to continuously chain and test for vulnerabilities, positioning itself as a replacement for traditional penetration tests to help organizations find and fix weaknesses before attackers or rogue AI agents can exploit them.