Yale New Haven Health Data Breach
Yale New Haven Health System (YNHHS), the largest integrated healthcare network and academic medical system in Connecticut, reported a critical data breach to the U.S. Department of Health and Human Services (HHS).
Exposed Data Types
4 sensitive10- Medical diagnoses
- Medical treatment information
- Prescription information
- Health insurance identification numbers
- Names
- Social security numbers
- Dates of birth
- Financial information
- Physical addresses
- Phone numbers
About This Breach
The cyber incident involved unauthorized access to central network repositories and compromised approximately 5.5 million patient files. Compromised data classes include full patient names, Social Security numbers (SSNs), clinical diagnoses, treatment documentation, prescription histories, dates of birth, health insurance policy IDs, patient billing accounts, postal addresses, and contact numbers.
Verification and editorial method
LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.
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