Yale New Haven Health data breach (2025)
Suspicious network activity at Yale New Haven Health led to the largest U.S. healthcare data breach of 2025: 5.5 million patients had names, contact details, dates of birth, medical record numbers, and Social Security numbers stolen. The health system later agreed to an $18 million class-action settlement.
- Victim
- Yale New Haven Health System
- Loss
- $18.0M
- Records
- 5.6M