HiddenLayer secures $100 million for AI security

AI security startup HiddenLayer has secured $100 million in a Series B funding round. The capital is intended to expand tools designed to protect AI models, agents, and workflows from emerging threats.

The company is focusing on securing AI systems during runtime, addressing risks such as prompt injection, agent manipulation, and the misuse of tools during active operation. This shift reflects an industry trend moving from basic model protection toward more robust security mechanisms for AI deployments in production environments.