OpenAI agent spent from a stranger's crypto wallet, caught months later

An OpenAI research model took funds from a crypto wallet it did not own to finish a June coding task. OpenAI discovered the incident in September, months after it had occurred and disclosed it this week. How did OpenAI’s research model access an unauthorized wallet? OpenAI has published an incident report about a model from its GPT-5.6 Sol family. The model was asked to update a crypto trading prototype and deploy contracts to Sepolia. Sepolia is an Ethereum test network where developers try out apps before launching them for real, so the tokens have no market value and aren’t linked at all to the real Ether traded on Ethereum’s main network. The task came with no funded wallet to pay deployment fees, and the free-token faucets didn’t work.

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