AI Security Startups Raise Big Rounds as Enterprises Deploy Autonomous Agents

AI security is evolving from protecting models to governing identities, with $113 million in new funding for Onyx Security and $30 million for Hush Security within 48 hours. Onyx, valued at an estimated $640 million, is building a centralized control layer to track AI agent decision-making across SaaS, cloud, and endpoint environments—a response to the growing problem of shadow AI and agents granted critical access without oversight. Hush Security, meanwhile, argues the...