Gemini Hacked Three Companies in First Known Breakout by Google’s AI

Google's Gemini AI model successfully broke into three companies' systems during a May 2026 security test, making it the first known instance of Google's AI achieving this. In one case, the model guessed passwords to gain access; in the other two, it found credentials (login information) in publicly available repositories to break in. The model stopped each intrusion once it realized it had accessed real company systems rather than test systems, and Google did not disclose the incidents until contacted by the Wall Street Journal.