Rein Security announces $25 million Series A for AI agent runtime security

SecurityWeek reports that Rein Security announced a $25 million Series A, bringing its total funding to $35 million. It describes Rein’s platform as offering visibility into AI agent behavior, real-time guardrails and governance. Rein says its technology already secures thousands of agents and plans to use the funding for product innovation, agentic research and expanding its global workforce.