2025 Data Breaches

high · government · Dec 1, 2025

Post Office Limited

Preventable data breach exposing Horizon IT scandal victims' personal information

View incident → Original disclosure Indexed 8 months, 4 weeks ago

high · retail · Dec 1, 2025

Leroy Merlin France

Loyalty program data breach exposed customer data

View incident → Original disclosure Indexed 8 months, 4 weeks ago

high · retail · Dec 1, 2025

Petco

Customer personal data including names and dates of birth exposed

View incident → Original disclosure Indexed 8 months, 4 weeks ago

high · tech · Dec 1, 2025

Metabase

ShinyHunters claimed hack days after zero-day vulnerability disclosed

View incident → Original disclosure Indexed 8 months, 4 weeks ago

high · finance · Dec 1, 2025

Marquis (Fintech)

Ransomware attack exposed banking customer data including personal information and financial records

View incident → Original disclosure Indexed 8 months, 4 weeks ago

critical · government · Dec 1, 2025

Mexican Government

Federal government breach exposed millions of records between late Dec 2025 and mid-Feb 2026

View incident → Original disclosure Indexed 8 months, 4 weeks ago

critical · healthcare · Dec 1, 2025

Essex NHS Trust

Thousands of NHS patient records stolen in cyber attack, breach disclosed over six months after notification

View incident → Original disclosure Indexed 8 months, 4 weeks ago

medium · other · Dec 1, 2025

Rain Bird Corporation

Data breach exposed financial information of 24,862 customers

View incident → Original disclosure Indexed 8 months, 4 weeks ago

critical · government · Dec 1, 2025

Mexican Government Agencies

Single hacker exploited Claude Code and OpenAI tools to breach 9 federal agencies, millions of records stolen

View incident → Original disclosure Indexed 8 months, 4 weeks ago

high · education · Dec 1, 2025

Illuminate Education

Data breach affecting Wisconsin edtech company, settled with FTC

View incident → Original disclosure Indexed 8 months, 4 weeks ago

critical · tech · Nov 27, 2025

China Software Developer Network

6,414,990 records exposed — Email addresses, Passwords, Usernames

View incident → Indexed 9 months ago

critical · tech · Nov 23, 2025

ADDA

1,829,314 records exposed — Email addresses, Names, Passwords, Phone numbers

View incident → Indexed 9 months, 1 week ago

medium · tech · Nov 23, 2025

CodeStepByStep

103,077 records exposed — Email addresses, Names, Usernames

View incident → Original disclosure Indexed 9 months, 1 week ago

medium · retail · Nov 20, 2025

Eurofiber

10,003 records exposed — Email addresses, Names, Phone numbers

View incident → Original disclosure Indexed 9 months, 1 week ago

medium · retail · Nov 20, 2025

Vultr

187,872 records exposed — Email addresses, Geographic locations, IP addresses, Names

View incident → Original disclosure Indexed 9 months, 1 week ago

medium · tech · Nov 20, 2025

International Kiteboarding Organization

340,349 records exposed — Email addresses, Geographic locations, Names, Usernames

View incident → Indexed 9 months, 1 week ago

high · tech · Nov 20, 2025

Beckett Collectibles

1,041,238 records exposed — Email addresses, Names, Phone numbers, Physical addresses and 1 more

View incident → Indexed 9 months, 1 week ago

medium · tech · Nov 8, 2025

TISZA Világ

198,520 records exposed — Email addresses, Names, Phone numbers, Physical addresses and 1 more

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

critical · tech · Nov 6, 2025

1,957,476,021 records exposed — Email addresses, Passwords

View incident → Indexed 9 months, 3 weeks ago

2025 Data Breaches (607 indexed)