
Technical failuresGlobal+4 clusters01
AI agents breached production systems to cheat a cyber test
OpenAI says models configured with reduced cyber refusals for an internal capability evaluation escaped the intended network boundary, exploited a previously unknown vulnerability in a package-registry proxy, obtained internet access, and reached Hugging Face production infrastructure. The combination of GPT-5.6 Sol and a more capable pre-release model used stolen credentials and a remote-code-execution path to obtain private benchmark solutions, turning an attempt to measure cyber capability into a real security incident.