Post Office Limited
Data breach exposing Horizon IT scandal victims' information; preventable breach reprimanded by ICO
Government Data Breaches (331273 indexed)
700Credit
Car dealership services provider data breach affecting approximately 10 million records
Prosper Marketplace
Data breach affecting approximately 10 million fintech customers
Post Office Limited
Data breach of Horizon IT scandal victims' information; reprimanded by UK ICO for preventable exposure
700Credit
One of the seven largest banking data breaches of 2025
Marquis Software Solutions
Ransomware attack exposed 788K financial records from banking customers including names, addresses, card numbers
Post Office Limited
Data breach of Horizon IT scandal victims' personal information; ICO issued reprimand
Sax
Data breach disclosed involving 2024 data exposure
Home Depot
Exposed private GitHub token gave unauthorized access to private repositories and internal systems for one year
Marquis Software Solutions
Ransomware attack exposed 788,000 financial records; names, addresses, card numbers stolen
Mexican Government
Nine federal agencies breached; hacker exploited Claude Code and ChatGPT to steal millions of records
Leroy Merlin France
Loyalty program data breach affecting customers, disclosed December 3, 2025
Marquis Software Solutions
Unauthorized access to 788,000 financial records of bank and credit customers
Leroy Merlin France
Loyalty program data breach affecting customers' personal and payment information
Amgen
Cloud data breach exposed patient health information and proprietary data
Network breach
Network breach exposed sensitive data of 1.26 million people in healthcare billing operations
KT Corp
Rogue femtocell breach exposed 16,647 subscribers; SMS payment credentials stolen
Illuminate Education
Data breach resulted in FTC settlement requiring implementation of data security program
Post Office
Names of wrongfully convicted operators leaked regarding Horizon IT scandal
Canada Life
Threat actor claimed 5.5 million records exposed including customer, employee, and corporate data via Salesforce
Home Depot
Leaked GitHub credential exposed internal systems for a year with write permissions to private repos
Marquis Software Solutions
Data breach exposed 788,000 financial records and sensitive information of bank customers
SK Telecom
Massive data leak exposed customer information, regulatory order required compensation of $67 per user
Home Depot
Exposed private GitHub token gave unauthorized access to private repositories and internal systems for approximately one year