Three researchers at the security firm Hacktron used Anthropic’s Claude Opus 5 to chain two flaws and take over the ChatGPT and Codex accounts of several OpenAI employees, then reach an internal OpenAI code repository.

The chain began with a bug in the software that runs OpenAI’s public help forum and moved through a weakness in OpenAI’s own login system.

This was security research,…

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Source: The Hacker News

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