Rein Security Raises $25 Million to Secure Enterprise AI Agents

Israeli cybersecurity startup Rein Security has successfully closed a $25 million Series A funding round, co-led by Glilot Capital and Sienna Venture Capital. This brings the company's total funding to $35 million. As organizations increasingly deploy AI agents that possess broad access to sensitive business data, workflows, and system configurations, the risk of unauthorized or malicious activity grows. Rein Security provides a platform that grants security teams deep visibility into the code executed by these agents and the resources they access. By monitoring every action an agent takes, the company helps enterprises maintain control over their autonomous workforce, ensuring that AI-driven efficiency does not come at the cost of corporate security.