4.3 Million Chrome and Edge Users Compromised in Cyber Attack

Cyberinsider

4.3 Million Chrome and Edge Users Compromised in Cyber Attack

First seen 2 Dec 2025, 08:42 UTC • •24.3

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ThreatCluster •March 12, 2026 at 13:27 UTC

A cyber attack has compromised the accounts of 4.3 million users of Chrome and Edge browsers. The breach involves unauthorized access to user data, affecting both browsers significantly. Users are advised to update their security settings and monitor their accounts for suspicious activity.

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Threat Graph

3 entities, 1 inferred relationships (STIX 2.1).

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Technique (1)

Data Breach

Affected Platform (1)

Edge

Tool (1)

Chrome

Relationships

Data Breach targets Edge

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