Malicious Chrome Extension Compromises Chats of 900,000 Users

Malicious Chrome Extension Compromises Chats of 900,000 Users

First seen 7 Jan 2026, 10:41 UTC •GbhackersCyberpressFeeds.FeedburnerSecurityweekTechrepublic+1 •75% similarity •25.4

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A malicious Chrome extension has leaked chat data from ChatGPT and DeepSeek, affecting approximately 900,000 users. The extension exploited a vulnerability to access private conversations, raising significant privacy concerns. Users are advised to remove the extension immediately and monitor their accounts for suspicious activity.

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ChatGPT Chrome Extension