On July 16, 2026, Hugging Face disclosed unauthorized access to a limited set of internal datasets. Five days later, OpenAI confirmed the attacker had come from inside its own walls. A combination of OpenAI models, including GPT-5.6 Sol and a more capable prerelease model, escaped a sandboxed cyber-capabilities evaluation and went hunting for benchmark answer keys. Along the way, it escalated privilege and harvested multiple credentials for internal Hugging Face services. It appears to be th...