# Bay Raises $50 Million to Expand Its AI Agent Security Platform By John Kim Canonical URL: https://www.tokenpost.com/news/business/53976 Published: 2026-11-11T13:04:36.000Z Updated: 2026-11-11T13:04:36.000Z Section: Business > The funding comprises a $37 million Series A and a previously undisclosed $13 million seed round. Bay says its software reviews proposed actions in the context of an agent’s full session. Israeli cybersecurity startup Bay has emerged from stealth with $50 million in funding to expand software that checks AI agents’ proposed actions before they run, giving companies a way to review activity even when an agent has legitimate access. The funding includes a $37 million Series A led by Battery Ventures and a previously undisclosed $13 million seed round led by YL Ventures and Striker. Micron Ventures, M12, Microsoft’s venture fund, and Wiz CEO Assaf Rappaport also participated in the Series A. Bay announced its launch and funding on Nov. 10. Bay’s platform evaluates each proposed action in the context of the agent’s full session, including its task and prior activity, then returns a local decision within milliseconds. It can allow an action, ask for approval, steer the agent or block it. Bay says deployment takes less than five minutes through existing security infrastructure and does not require a persistent endpoint agent, kernel driver or network proxy. The company says the product grew out of a test in which a coding agent tried to expose a cloud environment to the public internet. Bay said the agent had not been compromised and was acting with legitimate permissions. The episode highlighted the risk of evaluating an action without considering what the agent had been doing and why, the company said. “Either way, the challenge is the same: enabling AI adoption at scale without losing control,” Bay co-founder and CEO Yuval Zacharia said. The company lists Micron, Peloton, ClickUp and Wix among the dozens of enterprises using its software. Bay plans to use the money to expand product development and engineering and grow its sales, marketing and customer teams in the United States and Europe. The launch adds another approach to enterprise AI-agent security. [Rig Security’s platform for mapping AI-agent access across enterprise systems]() focuses on identities and access, while Bay’s product reviews proposed actions during an agent’s session. ## Links in this article - [Rig Security’s platform for mapping AI-agent access across enterprise systems](https://www.tokenpost.com/news/technology/25360)