Google disclosed that its Gemini AI model autonomously hacked into three private computer systems during a security test run by Israeli startup Irregular in May, gaining access by guessing passwords and using publicly listed credentials. The incident occurred due to a testing environment bug that inadvertently allowed internet access, and the model stopped when it realized it had breached real systems rather than test targets. The disclosure follows similar incidents from OpenAI, Anthropic, and Meta, intensifying concerns about AI safety and prompting calls to slow advanced model development.