Post Office Limited
Horizon IT scandal victims' data breach exposed personal information
Retail & E-Commerce Data Breaches (355465 indexed)
700Credit
Car dealership services provider breached, approximately 10 million records compromised
Marquis Software Solutions
Data breach of 788,000 financial records affecting bank and credit union customers
Prosper Marketplace
Fintech company data breach affecting approximately 10 million users with personal financial information
Marquis Software Solutions
Data breach exposed 788,000 financial records affecting bank and credit union customers through unauthorized access
SK Telecom
Massive data leak; consumer agency ordered company to pay $67 per user in compensation
SK Telecom
Massive data leak affecting users; ordered to pay $67 compensation per user
Credential Compilation
2 billion emails and 1.2 billion passwords exposed in massive credential compilation
SK Telecom
Massive data leak exposing customer records; state consumer agency ordered $67 per user compensation
Marquis Software Solutions
Ransomware attack stole 788,000 financial records including names, addresses, card numbers
Mexican Government
Nine federal agencies breached via AI tools (Claude Code and ChatGPT); millions of records stolen
Home Depot
Leaked private GitHub token exposed internal systems and private repositories for over a year
700Credit
Car dealership services provider breach affecting ~20 million records total with Prosper
Post Office Limited
Data breach exposing names of Horizon IT scandal victims; reprimanded by ICO
Home Depot
Leaked private GitHub token exposed internal systems for over a year with write permissions to repos
Prosper Marketplace
Fintech data breach affecting portion of ~20 million records exposed with 700Credit
Post Office Limited
Personal data of Horizon IT scandal victims accidentally published, entirely preventable breach
700Credit
Car dealership services provider data breach affecting approximately 10 million users with personal information
Post Office Limited
Accidental publishing of data about Horizon IT scandal victims including wrongfully convicted operators' names
Marquis (Fintech)
Ransomware attack stole banking customer data with personal information and financial records from dozens of US banks
Leroy Merlin France
Loyalty program data breach affecting customers' data on December 3, 2025
Home Depot
Exposed access to internal systems including GitHub source code repos for approximately one year
Leroy Merlin France
Loyalty program data breach affecting customers of home improvement and gardening retailer
700Credit
Car dealership services provider data breach affecting approximately 10M+ users