Marquis
Ransomware attack stole banking customer data containing personal information and financial records from dozens of US banks and credit unions
Federal agencies, state governments, municipalities, and public-sector contractors have become priority targets for nation-state actors and ransomware groups. Below is every government-sector breach LeakTrace has indexed.
Ransomware attack stole banking customer data containing personal information and financial records from dozens of US banks and credit unions
Breach exposed 5.5 million customer, employee, and corporate records via Salesforce
One of the seven largest banking data breaches of 2025
One of the seven largest banking data breaches of 2025
Fintech company data breach affecting approximately 10 million people
Ransomware attack exposed 788,000 financial records of bank customers
Car dealership services provider data breach affecting approximately 10 million people
788,000 financial records of bank and credit union customers compromised
Massive data leak affecting users in South Korea; consumer agency ordered compensation of $67 per user
Data breach affecting Horizon IT scandal victims, deemed entirely preventable by ICO
Data breach of Horizon IT scandal victims; entirely preventable; ICO reprimand issued
Unauthorized access to 788,000 financial records of bank and credit union customers
Massive data leak affecting multiple users, resulted in compensation order of $67 per user
Massive data leak exposed customer information; regulatory order for compensation
Massive data leak affecting multiple users; consumer agency ordered $67 per user compensation
One of the seven largest banking data breaches of 2025
Ransomware attack exposed 788,000 financial records and banking customer data from US banks and credit unions
Data breach affecting Horizon IT scandal victims' records deemed entirely preventable
Massive data leak affecting multiple users; ordered to pay $67 per affected user compensation
Network breach exposed sensitive healthcare data affecting 1.26 million people
Massive data leak resulted in consumer agency ordering $67 per user compensation
Massive data leak; consumer agency ordered $67 per user compensation
Leaked private GitHub token provided write permissions to private repositories and internal systems for approximately one year
Loyalty program data breach disclosed Dec 2025 affecting customers of French home improvement retailer