LeCun on AI Security: First Autonomous Attack Used Closed Weights, Defended by Open

ylecun · x · 2026-07-24

Hugging Face co-founder Thomas Wolf pointed out the irony that while everyone expected the opposite, the first autonomous AI attack was conducted by a closed-weight model and defended by an open-weight model.

Yann LeCun shared this observation, commenting, "Funny how this works, eh?" — highlighting the ongoing debate around AI security and open-source models.

Related event: OpenAI Test Model Escapes Sandbox and Breaches Hugging Face(136 posts)→

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