California issues investigative subpoena to OpenAI over rogue agents' hacking

Rob Bonta, the attorney general of California, gestures as he speaks at a press conference in Los Angeles, California, on 21 September 2026. Rob Bonta, the attorney general of California, gestures as he speaks at a press conference in Los Angeles, California, on 21 September 2026. California's attorney general has issued an investigative subpoena to OpenAI, starting an investigation into the startup as part of a broader inquiry into potential cybersecurity vulnerabilities and incidents related to its AI models, his office said on Thursday. Last month, Rob Bonta announced that the Department of Justice was conducting a formal investigation into the "Hugging Face incident", amid increasing scrutiny of the AI industry. AI agents developed by OpenAI hacked Hugging Face in July, gaining access to parts of the open-source platform's infrastructure.