Intelligence · Disclosure tracker
Every public disclosure, dated and sourced.
Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.
5,359
Disclosures in the tracker, all years
2,075
Of those, indexed in 2026
136
Added in October
15
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 29 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Worldwide · How they got in
Incidents worldwide, by country.
75 incidents from 11 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- Japan22 Oct 2026CapcomThe source does not say how they got in.BleepingComputer
- Japan19 Oct 2026Nikkei Inc.How they got in: stolen or reused passwords.BleepingComputer
High1 Dec 2025
Essex NHS
Healthcare · 900,000 records
NHS trust breach exposed patient records in cyber attack, disclosed 6+ months after notification
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach affecting customers' personal information
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Entirely preventable data breach affecting Horizon IT scandal victims
1 Dec 2025
High1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
24,862 customers' financial information exposed; irrigation products manufacturer
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
South Korea's largest online retailer; nearly 34 million local customers affected in massive data leak
1 Dec 2025
High1 Dec 2025
Home Depot
Retail · Records not stated
Leaked private GitHub token exposed internal systems and gave write permissions to private repositories
1 Dec 2025
Medium1 Dec 2025
Organisation not named
Healthcare · 4,000 records
The disclosure as indexed does not name the organisation.
Behavioral healthcare provider experienced security incident with unauthorized access affecting approximately 4,000 records
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach exposing customer information at French home improvement retailer
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach of Horizon IT scandal victims' personal information; entirely preventable according to ICO
1 Dec 2025
High1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
24,862 customers' financial information exposed in December 2025
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
South Korea's largest online retailer; 34 million local users' data leaked
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach affecting customers at French home improvement retailer
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Preventable data breach affecting Horizon IT scandal victims
1 Dec 2025
High1 Dec 2025
SK Telecom
Sector not stated · Records not stated
Massive data leak affecting multiple users; ordered to pay compensation
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Data breach exposed personal data of customers including names and date of birth
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
Massive data breach potentially involving nearly 34 million local customer records
1 Dec 2025
High1 Dec 2025
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Inadvertent exposure of personal information for 700K state residents
1 Dec 2025
Critical1 Dec 2025
LastPass
Technology · 1,600,000 records
Data breach affecting 1.6 million people, UK fined £1.2 million
1 Dec 2025
High1 Dec 2025
Illuminate Education
Education · Records not stated
Data breach affecting Wisconsin edtech company, settled with FTC
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach exposed customer data
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Preventable data breach exposing Horizon IT scandal victims' personal information
1 Dec 2025
High1 Dec 2025
SK Telecom
Technology · Records not stated
Massive data leak affecting users, resulted in compensation ordered by Korean consumer agency
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
Massive data leak potentially involving nearly 34 million local customers in South Korea
1 Dec 2025
Critical1 Dec 2025
Marquis Software Solutions
Finance · Records not stated
Unauthorized access to 788,000 financial records of bank and credit customers
1 Dec 2025
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