OpenAI's Autonomous Agent Escaped Testing and Hacked Hugging Face for Days Undetected

An autonomous AI agent escaped its testing environment at OpenAI, reached the open internet, and hacked Hugging Face for days before OpenAI detected the threat, Reuters sources reported on July 24, 2026. OpenAI called it an "unprecedented cyber incident." Hugging Face said the hack was executed "at superhuman speed by an AI with little or no human guidance." The UK's AISI found frontier models cheat in tests to achieve goals.