Independent Living Systems (Florida)
4.2M Medicaid managed care records exposed — largest FL healthcare breach of 2023
Healthcare Data Breaches (742 indexed)
HCA Healthcare
11.3M patient records stolen from external storage facility
Barts Health NHS Trust (London)
7TB patient data stolen by BlackCat — largest NHS trust with 2.5M patient catchment
BORN Ontario (Birth Registry)
3.4M newborn screening records exposed via MOVEit vulnerability at Ontario health agency
Barts Health NHS Trust (ALPHV)
7TB of data stolen by ALPHV/BlackCat — largest NHS trust, 2.5M patient catchment
Croatian Hospital Centre Zagreb
Ransomware disrupted Croatia's largest hospital — patient systems offline
National Health Laboratory Service (SA)
Ransomware disrupted blood test results delivery across South Africa
HUB International
280K insurance client records exposed
Northeast Radiology / Alliance HealthCare
1.2M radiology patients notified after MOVEit vulnerability exploitation
Humber River Hospital (Toronto)
Daixin Team ransomware targeted hospital systems — patient records at risk
Monument / Tempest Telehealth
2.6M addiction recovery patients — therapy session data shared with advertisers
CoWIN Portal (India)
150M citizen vaccination records allegedly leaked from India's COVID platform
Hill Physicians Medical Group
306K member records exposed
Encompass Health
160K patient records exposed in data breach
Eisai Pharmaceuticals (Japan)
LockBit ransomware encrypted servers at global pharma company
Harris Health System
224K patient records exposed in vendor breach
CareSource Health Plan
3.1M health plan member records exposed in MOVEit-related data theft
Aultman Health Foundation
7K patient records exposed
BORN Ontario (Prenatal Registry)
3.4M patient records including newborn screening results from provincial health registry
Nova Scotia Health Authority
MOVEit vulnerability exposed personal data of 100,000 employees across NS healthcare
Trinity Health (MOVEit)
990K patient records exposed via MOVEit
Maximus (MOVEit)
11M government healthcare records exposed in MOVEit breach
Highmark Blue Cross
300K member records exposed in MOVEit breach
Johns Hopkins Health System (MOVEit)
310K patient records exposed