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OpenAI and Hugging Face Disclose a Real Security Incident During Model Evaluation
OpenAI NewsยทMonday, 27 July 2026

OpenAI and Hugging Face jointly disclosed a security incident that happened during AI model evaluation, sharing early findings about advanced cyber capabilities involved and lessons for defenders. The disclosure was published July 21, 2026. Both organizations are sharing what they learned to help the broader community defend against similar threats.
Why It Matters
Security during model evaluation is a blind spot for most AI practitioners โ this real-world incident is a rare chance to learn what actual AI-era security failures look like.
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