Real-time adversarial testing gives enterprise security teams visibility into AI vulnerabilitiesNEW YORK, May 19, 2026 (GLOBE ...

OpenAI has announced the acquisition of Promptfoo, an AI security startup founded in 2024 and used by more than 25% of Fortune 500 companies. The terms of the acquisition have not been announced.

OpenAI is acquiring Promptfoo, a San Francisco-based AI security startup, in a move that signals how seriously the company is taking enterprise trust as it pushes deeper into agentic AI. The deal ...

OpenAI announced Monday it has acquired Promptfoo, an AI security startup founded in 2024 to protect LLMs from online adversaries. The frontier lab said in a blog post that once the deal closes, ...

Investing.com -- OpenAI announced plans to acquire Promptfoo, an AI security platform that helps enterprises identify and fix vulnerabilities in AI systems during development. The company said it will ...

The ChatGPT maker is set to announce Monday that it will integrate Promptfoo’s technology into OpenAI Frontier, a recently launched platform that allows organizations to build and manage AI agents ...

OpenAI is stepping up its push to bolster the security framework surrounding its enterprise-focused AI ecosystem. Recently, the AI giant has looked to address the need for agentic AI security testing ...

OpenAI is acquiring cybersecurity startup Promptfoo. Promptfoo's team will join Sam Altman-led OpenAI, and its technology will be integrated into the Frontier platform for AI agents. Promptfoo ...

OpenAI has agreed to buy Promptfoo, a startup that enables large businesses to find and fix security issues in artificial intelligence models during their development, part of a push to help corporate ...