Marquis Software Solutions
Ransomware attack exposed 788,000 financial records; names, addresses, card numbers stolen
Healthcare Data Breaches (329507 indexed)
KT Corporation
Customer data breach affecting telecommunications giant in South Korea, resulted in $39M fine
Post Office Limited
Data breach of Horizon IT scandal victims' personal data, reprimanded by ICO
Leroy Merlin France
Loyalty program data breach affecting customers disclosed December 2025
Post Office Limited
Data breach exposed names of wrongfully convicted Horizon IT scandal victims; ICO reprimand issued
Post Office Limited
Data breach exposing Horizon IT scandal victims' personal information, entirely preventable
Post Office Limited
Data breach affecting Horizon IT scandal victims; reprimanded by ICO
Leroy Merlin France
Loyalty program data breach exposed customer data
Leroy Merlin France
Loyalty program data breach disclosed affecting customers with personal information exposed
Home Depot
Leaked private GitHub token exposed internal systems and gave write access to private repositories for over a year
Network breach
Network breach exposed sensitive data of 1.26 million people in healthcare billing operations
Leroy Merlin France
Loyalty program data breach affecting customers on December 3, 2025
700Credit
Data breach affecting approximately 10 million individuals from car dealership services provider
Post Office Limited
Data breach exposed names of Horizon IT scandal victims; ICO issued reprimand
Prosper Marketplace
Fintech company data breach affected approximately 10 million users
Post Office Limited
Data breach exposed names of wrongfully convicted operators, entirely preventable
SK Telecom
Massive data leak affecting numerous users; ordered to pay $67 per user compensation
Post Office Limited
Data breach affecting Horizon IT scandal victims; reprimanded by UK ICO as 'entirely preventable'
SK Telecom
Massive data leak affecting users; ordered to pay $67 compensation per user
Leroy Merlin France
Loyalty program data breach affecting customers of home improvement and gardening retailer
700Credit
One of the seven largest banking data breaches of 2025
700Credit
Car dealership services provider data breach affecting approximately 10 million people
Prosper Marketplace
One of the seven largest banking data breaches of 2025
TransUnion
One of the seven largest banking data breaches of 2025