Post Office
Accidental publishing of data about people wrongfully convicted in Horizon IT scandal
Healthcare Data Breaches (336295 indexed)
Network breach
Network breach exposed sensitive healthcare data affecting 1.26 million people
SK Telecom
Massive data leak exposing customer records. Consumer agency ordered $67 per user compensation.
700Credit
Car dealership services provider data breach affecting ~10 million records
Post Office Limited
Data breach affecting Horizon IT scandal victims resulted in ICO reprimand for preventable exposure
Post Office Limited
Data breach affecting Horizon IT scandal victims; entirely preventable per ICO
SK Telecom
Massive data leak resulted in state-run consumer agency ordering $67 per user compensation
Leroy Merlin France
Loyalty program data breach affecting customers
700Credit
Banking data breach, among seven largest in 2025
Post Office Limited
Data breach exposed names of wrongfully convicted Horizon IT scandal victims; ICO reprimand issued
TransUnion
Banking data breach, among seven largest in 2025
SK Telecom
Massive data leak affecting numerous users; ordered to pay $67 per user compensation
Home Depot
Exposed private GitHub token gave write permissions to private repos and internal systems for a year
Canada Life
5.5 million records allegedly exposed via Salesforce; threat actor claimed to sell data
Post Office Limited
Data breach affecting Horizon IT scandal victims, deemed entirely preventable by ICO
700Credit
Data breach affecting car dealership services customers, nearly 20 million impacted
Prosper Marketplace
Data breach affecting millions of fintech company customers
Post Office Limited
Names of Horizon IT scandal victims accidental published in preventable data breach
Leroy Merlin France
Loyalty program data breach affecting customers exposed personal information
Post Office Limited
Data breach of Horizon IT scandal victims' personal information, entirely preventable
Post Office Limited
Data breach affecting Horizon IT scandal victims, reprimanded by ICO for entirely preventable breach
Marquis Software Solutions
Unauthorized access to sensitive information of 788,000 bank and credit union customers
Coupang
South Korea's largest online retailer breached, 33.7 million customers' personal information exposed
Leroy Merlin France
Loyalty program data breach affecting customers, 37,000+ records exposed