Post Office Limited
Preventable data breach exposing Horizon IT scandal victims' personal information
2025 Data Breaches (607 indexed)
Prosper Marketplace and 700Credit
Data breach affecting approximately 20 million individuals across fintech and car dealership services
Petco
Customer personal data including names and dates of birth exposed
Credential Compilation
2 billion emails and 1.2 billion passwords exposed in massive credential compilation
Huntsville Hospital
Third-party vendor breach compromised patient health information
LastPass
Data breach affecting 1.6 million people, UK fined £1.2 million
SK Telecom
Massive data leak affecting users, resulted in compensation ordered by Korean consumer agency
Marquis Software Solutions
Ransomware attack exposed 788,000 financial records from bank and credit union customers
Multiple (Compilation Leak)
2 billion emails and 1.2 billion passwords compromised in massive credential compilation
DXS International
Healthcare tech provider for NHS England suffered ransomware attack and confirmed data breach
Metabase
ShinyHunters claimed hack days after zero-day vulnerability disclosed
Rain Bird Corporation
Data breach exposed financial information of 24,862 customers
Multiple (Compilation)
2 billion emails and 1.2 billion passwords compromised in massive credential compilation
Leroy Merlin France
Loyalty program data breach disclosed, customer data exposed in December 2025
Essex NHS Trust
Thousands of NHS patient records stolen in cyber attack, breach disclosed over six months after notification
Rain Bird
24,862 customers' financial information exposed
Credential Compilation (Multiple Sources)
2 billion emails and 1.2 billion passwords compromised in massive compilation
1 million Social Security numbers exposed through cybersecurity loophole in government
1 million Social Security numbers exposed through cybersecurity loophole in government mapping service
Rain Bird
Data breach exposed financial information of 24,862 customers
Post Office
Accidental publishing of data about wrongfully convicted Horizon IT scandal operators
Leroy Merlin
Loyalty program data breach affecting customers
Ecopetrol
Cyberattack stole data linked to approximately 3,300 user accounts
Credential Breach (Multiple Sources)
2 billion emails and 1.2 billion passwords compromised in massive data compilation
Prosper Marketplace
One of seven largest banking data breaches of 2025