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ChatGPT Flaw Lets Attackers Pull Gmail Data Across Accounts via a Hidden Channel

Summary by CSO Online
Cross-account task execution exposed Gmail data without user awareness, raising new concerns for enterprise AI security.

17 Articles

Check Point Research has uncovered a serious vulnerability in ChatGPT. While the chatbot was conducting a normal conversation with the user, it was also able to secretly act on behalf of... after entering a single instruction. Full version of the page: https://ithardware.pl/aktualnosci/chatgpt_luka_gmail_openai-53895.html

An investigation by Check Point revealed that an internal instance of Artifactory could serve as a hidden channel for a ChatGPT session to send instructions and extract data from someone else’s connected accounts. The infrastructure was removed, but the case exposes the risks of entrusting AI agents with simultaneous access to private code, services and files.

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Check Point Software broke the news on Tuesday, September 8, 2026.
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