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Malicious Chrome Extensions Steal User Data for Years

Malicious Chrome Extensions Steal User Data for Years

First seen 6 Jan 2026, 20:46 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

Two malicious Chrome extensions, disguised as proxy tools, have been stealing sensitive user data since at least 2017. Named 'Phantom Shuttle', these extensions have been active in the Chrome Web Store and primarily target users in China, including foreign trade workers. Security researchers discovered that the extensions hijack user traffic to access credentials and other sensitive information.

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