Yes. On October 1, 2026, California Attorney General Rob Bonta’s office announced that he had served an investigative subpoena on OpenAI as part of an ongoing California Department of Justice inquiry into cybersecurity incidents and risks involving OpenAI and its AI models.
The subpoena follows the office’s earlier formal investigation into the so-called Hugging Face incident and broader monitoring of AI developers’ compliance with California law. Bonta said his office is seeking additional information from OpenAI about those cybersecurity risks.
Source: California Department of Justice — Office of the Attorney General