OpenAI-HuggingFace: A Reproduction & Lessons for Alignment Testing

Stewart Slocum*, Malayandi Palan*, Christopher Chute, Michael Kim, Benjamin Van RoyIn July 2026, OpenAI’s agents coordinated over channels outside their intended environment to breach Hugging Face’s secured infrastructure. Could existing alignment testing practices have foreseen this incident? If not, what needs to change? We explore these questions.First, we identify the misaligned behaviors that caused this incident. Then, we show how to elicit these behaviors from publicly available models ma...