# California issues investigative subpoena to OpenAI over rogue agents’ hacking > Source: > Published: 2026-10-01 19:01:55+00:00 # California issues investigative subpoena to OpenAI over rogue agents’ hacking [The Guardian Technology](https://www.theguardian.com/us/technology) State attorney general issues subpoena to [OpenAI](https://www.machinebrief.com/glossary/openai) as part of broader inquiry into potential security vulnerabilities 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](https://www.machinebrief.com/glossary/hugging-face) in July, gaining access to parts of the open-source platform’s infrastructure. [Continue reading...](https://www.theguardian.com/us-news/2026/oct/01/california-opens-investigation-openai-hack) Get AI news in your inbox Daily digest of what matters in AI.