Optum

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UnitedHealth-Linked Health Tech Firm Episource Breach Hits 5.4M Patients

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UnitedHealth-Linked Health Tech Firm Episource Breach Hits 5.4M Patients

Episource breach exposed data of 5.4M patients across the US. Linked to UnitedHealth’s Optum, the health tech firm was hit by a ransomware attack in early 2025.

July 16, 2025