North Texas Behavioral Health Authority
284,525 patient records with clinical information
View incident → Indexed 1 month ago
Healthcare Data Breaches (742 indexed)
North Texas Behavioral Health
284K victims' sensitive mental health information accessed
View incident → Indexed 1 month ago
Cognizant TriZetto (Healthcare IT)
3.4M patient health records including SSNs, medical data, insurance info
View incident → Indexed 1 month ago
TriZetto Provider Solutions
3.4M healthcare records including SSNs, DOB, health insurance data exposed
View incident → Indexed 1 month ago
Cleveland Clinic (Vendor)
950K patient appointment and billing records exposed via compromised scheduling vendor
McKesson Corporation
2.8M pharmacy customer records exposed via compromised drug distribution platform
LabCorp (Quest Integration)
820K patient lab results exposed via misconfigured API following Quest Diagnostics merger
Sanofi (France)
1.2M clinical trial participant records exposed via compromised research data platform
SingHealth (Singapore 2026)
1.5M patient records from Singapore public healthcare system breached for second time
WellSpan Health (Pennsylvania)
280K patient records stolen in network intrusion
DaVita Inc.
1.8M dialysis patient records compromised in ransomware attack on kidney care provider
Anthem Blue Cross (2026)
2.7M member records exposed via compromised claims analytics vendor
Rexall Pharmacy
340K patient records compromised
Molina Healthcare
3.1M Medicaid and Medicare patient records exfiltrated via compromised claims portal
University of Mississippi Medical Center
University of Mississippi Medical Center is still scrambling to respond to a ransomware attack last Thursday
Canada Health Infoway
3.2M patient health records from interprovincial data exchange compromised
Bupa (UK/Global)
780K international health insurance member records exposed via insider data theft
Mayo Clinic
900K patient research records exposed via compromised genomics analysis platform
Cerner / Oracle Health
5.9M patient records exposed after legacy Cerner migration database left unsecured on Oracle Cloud
Jean Coutu (Pharmacy)
450K patient records exposed in POS breach
Association Nationale des Premiers Secours
5,600 records exposed — Dates of birth, Email addresses, Names, Places of birth and 1 more
Oman Ministry of Health
280K patient records exposed
Baystate Health
440K patient records exposed in spear-phishing attack on Massachusetts health system
CVS Health / Aetna
3.4M patient pharmacy and insurance records exposed via compromised prescription gateway