openai.com
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OpenAI is buying Promptfoo, a startup whose red-teaming and vulnerability scanning tools are already used by over a quarter of Fortune 500 companies. The plan is to fold Promptfoo’s technology directly into OpenAI Frontier, the enterprise platform for deploying AI agents, so that automated security testing against prompt injection, jailbreaks, and data leaks becomes a built-in feature rather than a bolt-on. It is a notable acqui-hire in a stretch where every major lab is racing to make agentic workflows enterprise-safe. With AI agents gaining access to internal tools and sensitive data, the security surface area has grown faster than most teams can audit manually – and OpenAI clearly decided to buy that capability rather than build it.
