SecurityLatent Spaceabout 2 hours ago
Claude Opus 5 Used to Compromise OpenAI Accounts
13 min read
Three researchers used Claude Opus 5 to chain an image-upload bug, take over ChatGPT/Codex accounts, and gain access to OpenAI-connected services, including a pull request in OpenAI's internal monorepo. The attack reportedly took under 72 hours and cost a few thousand dollars in tokens.
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