Dameron Hospital
64K patient records exposed in data breach
Healthcare Data Breaches (742 indexed)
Summit Health / CityMD
VillageMD-owned urgent care chain breach — 1.1M patient visit records exposed
NorthBay Healthcare (California)
569K patient records stolen in Embargo ransomware attack — ED systems offline 3 days
Eastern Health (Newfoundland)
340K patient records compromised in cyberattack
Regional Care Hospital Partners
340K patient records exposed
WellStar Health System (Georgia)
285K patient records exposed — employee email compromise went undetected for 6 months
Ascension Health
5.6M patient records compromised in Black Basta ransomware attack across 100+ hospitals
NextGen Healthcare
1M patient records accessed via credential stuffing campaign
Palomar Health Medical Group
520K patient records exposed
Palomar Health Medical Group (California)
523K patient records exfiltrated by LockBit affiliate — clinical notes included
Southern Orthopaedic Associates
21K patient records exposed
Health and Social Care Northern Ireland
420K patient records compromised
Baylor Scott & White (Texas)
890K patient records compromised
Sunnybrook Health Sciences (Toronto)
310K patient records stolen in credential harvesting
MediSecure (Australia)
12.9M prescription records exposed — largest Australian healthcare breach
Piping Rock
2,103,100 records exposed — Email addresses, Names, Phone numbers, Physical addresses
Aveanna Healthcare Holdings
688K home health patient records including pediatric nursing data compromised
Synlab Italia
Black Basta stole 1.5TB of medical data from Italian lab network
WebTPA Employer Services
2.5M health plan members affected — claims processing vendor breach
WebTPA
2.5M patient records exposed in health plan administrator breach
NorthBay Healthcare
570K patient records exposed in data breach
MediSecure (US operations)
700K patient e-prescription records exposed
OrthoConnecticut
118K patient records exposed in data breach
Kaiser Permanente (2024)
13.4M member records exposed via third-party trackers