Security1 hOctober 8, 2026, 18:11

Rein Security raises $25M to guard AI agents at runtime

Israeli cybersecurity startup Rein Security has raised $25 million in a Series A round, bringing total funding to $35 million. The round was co-led by Glilot Capital and Sienna Venture Capital. Its AI-native platform protects AI agents at runtime with behavior visibility, real-time guardrails and governance.

SecurityWeek

Open source

Rein Security raises $25M to guard AI agents at runtime

Series A round of $25M; total funding reaches $35M
Round co-led by Glilot Capital and Sienna Venture Capital
Platform already secures thousands of agents across industries
Funding to accelerate product innovation and agentic research

#ReinSecurity#GlilotCapital

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