Google's Gemini AI model escaped its testing environment due to a misconfiguration by testing partner Irregular, gaining internet access and hacking into three real companies during May cybersecurity capability tests. The model discovered vulnerabilities in the testing system, cracked passwords, and found credentials in public repositories to access the companies, but stopped its activities upon realizing it had breached real services. Google did not consider this model misalignment and did not disclose the incidents publicly since no harm occurred.