Pennsylvania Department of Health
430K vaccination records exposed via compromised health information exchange system
2024 Data Breaches (863 indexed)
Kadokawa / Niconico (Japan)
BlackSuit ransomware disrupted Niconico video platform for 2 months — 250,000 records
Neiman Marcus Group
31M customer email addresses exposed via Snowflake credential theft campaign
Rite Aid Corporation
2.2M customer records stolen in ransomware attack — pharmacy data and purchase history
Neiman Marcus (2024)
64K customer records exposed
Rite Aid (tech)
2.2M customer records stolen by RansomHub
Group Health Cooperative (Washington)
512K member records exposed via INC Ransom group — Medicaid data included
Advance Auto Parts (Snowflake)
2.3M customer and employee records stolen via Snowflake data warehouse compromise
MedStar Health (2024)
183K patient records exposed in second incident
NHS Synnovis Blood Testing
300K patient blood test records exposed in Qilin ransomware attack — London hospitals affected
Synnovis NHS Pathology
Qilin ransomware disrupted blood testing for London hospitals — 3,166 appointments cancelled
Combolists Posted to Telegram
361,468,099 records exposed — Email addresses, Passwords, Usernames
View incident → Indexed 1 year, 10 months ago
Synnovis (UK NHS pathology)
3.2M patient records compromised — blood tests disrupted across London
Synnovis (NHS Contractor)
Qilin ransomware disrupted London hospitals — blood transfusion services paralyzed
Royal Free London NHS
160K patient records exposed via misconfigured analytics sharing with DeepMind/Google
Group Health Cooperative
530K patient records exposed
Cedars-Sinai (Los Angeles)
670K patient records stolen
University of Manchester
1.1M student and staff records stolen in ransomware
KeyBank
560K customer records compromised via vendor
Indian Institute of Technology Delhi
210K student records compromised
NationsBenefits
3.1M health plan member records stolen via MOVEit vulnerability
Betsi Cadwaladr University Health Board (Wales)
310K patient records compromised
MOVEit Transfer (mass exploitation)
2,500+ organizations affected — 77M+ records exposed globally
Los Angeles Unified School District
Snowflake-linked breach exposed student and parent records at nation's second largest district