Post Office Limited
Preventable data breach exposing Horizon IT scandal victims' personal information
2025 marked a continued acceleration in confirmed-breach disclosures. Below is every 2025 incident LeakTrace has indexed.
Preventable data breach exposing Horizon IT scandal victims' personal information
Loyalty program data breach exposed customer data
2 billion emails and 1.2 billion passwords compromised in massive compilation
Data breach resulted in accidental publishing of personal data of Horizon IT scandal victims
Customer personal data including names and dates of birth exposed
Data breach exposed financial information of 24,862 customers
Data breach exposed 1,525 individuals' SSNs and medical records (PHI/PII)
Data breach exposed sensitive personal information from at-home diagnostic test users
Australian travel agency customer records allegedly breached and disclosed on hacking forums
Data breach exposed financial information of 24,862 customers
6,414,990 records exposed — Email addresses, Passwords, Usernames
1,829,314 records exposed — Email addresses, Names, Passwords, Phone numbers
103,077 records exposed — Email addresses, Names, Usernames
10,003 records exposed — Email addresses, Names, Phone numbers
187,872 records exposed — Email addresses, Geographic locations, IP addresses, Names
340,349 records exposed — Email addresses, Geographic locations, Names, Usernames
1,041,238 records exposed — Email addresses, Names, Phone numbers, Physical addresses and 1 more
198,520 records exposed — Email addresses, Names, Phone numbers, Physical addresses and 1 more
1,957,476,021 records exposed — Email addresses, Passwords
1,957,476,021 records exposed — Email addresses, Passwords
1,957,476,021 records exposed — Email addresses, Passwords
1,957,476,021 records exposed — Email addresses, Passwords
1,957,476,021 records exposed — Email addresses, Passwords
1,957,476,021 records exposed — Email addresses, Passwords