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287 Chrome Extensions Found Leaking User Browsing History Data

287 Chrome Extensions Found Leaking User Browsing History Data

First seen 12 Feb 2026, 08:51 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 16:10 UTC

A security researcher has discovered 287 Chrome extensions that are allegedly exfiltrating browsing history data from an estimated 37.4 million installations. This data can reveal sensitive information about users' activities and interests, potentially allowing for identification through public social media profiles. The extensions are reportedly selling this data to data brokers.

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2026-02-11
Security researcher identifies 287 Chrome extensions leaking data

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