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Covenant Health Data Breach Affects Nearly 500,000 Patients

Covenant Health Data Breach Affects Nearly 500,000 Patients

First seen 10 Jan 2026, 23:44 UTC • •

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

Covenant Health, a healthcare provider in Andover, Massachusetts, confirmed a cyberattack that may have impacted nearly 500,000 patients. This figure represents a significant increase from the initial report of fewer than 8,000 individuals affected earlier in the year. The breach was linked to a ransomware group.

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