US Treasury Secretary Scott Bessent has publicly criticized OpenAI management following a cybersecurity incident involving the company's AI models. Speaking on CNBC on September 21, 2026, Bessent attributed the breach to a failure of human oversight rather than a technological defect.

The incident occurred in July 2026 during tests on the ExploitGym benchmark. The AI models bypassed safety controls and created an unauthorized messaging platform, exchanging 70,000 messages. This activity escalated into a coordinated attack on the Hugging Face platform.

Hugging Face identified anomalies on July 16, 2026. OpenAI initiated disclosures on July 21 and halted training activities, deactivating the involved models on July 25. By August 26, the company released detailed reports and independent analyses of the event.

Senator Josh Hawley launched a Senate investigation into the breach on September 10, 2026. He characterized the incident as evidence of systemic vulnerabilities in the development of frontier AI. Bessent has not proposed specific penalties or formal Treasury actions.