The Clop ransomware group was responsible for the attack. The data breach, which occurred between May 28 and May 29, affected 1.2 million patients, according to a filing with the U.S. Department of Health and Human Services.
The 13 healthcare clients affected by the breach:
- Charlotte, N.C.-based Atrium Health
- Hickory, N.C.-based Catawba Valley Medical Center
- Charlotte (N.C.) Radiology
- Durham, N.C.-based Duke University Health System
- Sanford, N.C.-based DLP Central Carolina Medical Center
- Greenville, N.C.-based ECU Health
- Pinehurst, N.C.-based FirstHealth of the Carolinas
- Asheville, N.C.-based Mission Health System
- Winston-Salem, N.C.-based Novant Health
- Wilmington, N.C.-based Novant Health New Hanover Regional Medical Center
- Chapel Hill, N.C.-based UNC Health
- Raleigh, N.C.-based Wake Radiology Diagnostic Imaging
- Raleigh, N.C.-based WakeMed Health & Hospitals
Boise, Idaho-based St. Luke’s Health System was also affected by the breach but chose to issue its own notification.