Tata Consultancy Services
2.3M client and employee records compromised
2025 Data Breaches (637 indexed)
City of St. John's (Newfoundland)
95K resident records compromised in phishing attack
University of Ottawa
450K student records stolen in ransomware
Saskatchewan Health Authority
450K patient records stolen in ransomware
Albertsons / Safeway
1.5M pharmacy records exposed
Hitachi Ltd
670K enterprise records compromised in supply chain attack
TheSqua.re
107,041 records exposed — Email addresses, Geographic locations, Names, Phone numbers
City of Portland (Oregon)
240K resident records exposed via compromised water billing and parks reservation systems
Kroger Grocery Stores
890K customer records exposed via compromised pharmacy benefits manager integration
Stripe Payment Processing
2.8M merchant account records exposed via compromised internal admin tooling API
Allianz Life
1,115,061 records exposed — Dates of birth, Email addresses, Genders, Names and 2 more
Sidley Austin LLP
480K client records from regulatory investigations exposed via ransomware attack
TD Bank (North America)
2.4M customer records exposed via insider data theft at Canadian retail banking division
UnitedHealthcare (Optum)
4.3M claims records stolen via compromised Optum claims adjudication system
Marquis Financial Services
672K individuals affected — ransomware attack disrupted operations at 74 banks
LifeBridge Health
540K patient records stolen in phishing-initiated breach
Maximus Inc.
11M government benefits claimants exposed via MOVEit exploitation at federal contractor
Maersk (Denmark)
1.1M shipping and logistics records stolen in targeted attack
Bon Secours Mercy Health
680K patient records exposed via compromised medical coding vendor system
NSW Government
1.3M citizen records exposed in Service NSW platform breach
Green Dot Corporation
890K prepaid card records exposed
Canada Post (2025)
1.5M customer shipping records stolen in vendor breach
UK Electoral Commission
40M voter register entries accessed during 14-month undetected intrusion
Unigame
843,696 records exposed — Email addresses, Passwords