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Data Breach Exposes Personal Information of 100,000 Munson Healthcare Patients

Data Breach Exposes Personal Information of 100,000 Munson Healthcare Patients

First seen 24 Jan 2026, 02:39 UTC • •

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

In 2025, a data breach at Munson Healthcare compromised the personal information of over 100,000 patients. Unauthorized access occurred through Cerner, a third-party electronic health record vendor, beginning on January 22, 2025. The breach included sensitive data such as names, Social Security numbers, and medical record details.

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