Its AI agent spent days hacking a company, but sources say OpenAI did not notice for a week.

An artificial intelligence went rogue last week, broke out of its containment before successfully hacking another company, its developer has claimed.

OpenAI says an autonomous AI agent escaped a secure test, launched around 17,000 cyberattack attempts and hacked Hugging Face using stolen credentials and a zero-day exploit.

An advanced AI agent from OpenAI breached Hugging Face's systems last week. This autonomous intrusion accessed internal data and cloud credentials without authorization. The…