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Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws

  • Posted on September 19, 2026
  • By The Hacker News
  • 1 Views
  • 1 min read
In brief

Security researchers demonstrated how Claude Opus 5 could identify and exploit multiple vulnerabilities in OpenAI's infrastructure. By chaining together forum authentication flaws with login weaknesses, the AI model assisted in gaining unauthorized access to staff accounts and internal repositories. This case study highlights the dual-use nature of advanced language models in cybersecurity, emphasizing the importance of robust defensive measures and responsible AI security research practices.

Summary auto-generated by AI from the original publisher's content. Editorial standards.

Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws
Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws

In security research, Claude Opus 5 helped chain forum and login flaws to take over OpenAI staff accounts and reach an internal repository.
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Author
The Hacker News

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