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.
5,439
Disclosures in the tracker, all years
2,154
Of those, indexed in 2026
87
Added in November
27
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 11 Nov 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.
79 incidents from 9 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.
- Belgium29 Oct 2026FOD Financiën (Belgian federal finance and tax agency)The source does not say how they got in.The Register
High1 Dec 2025
NHS England tech provider
Healthcare · 900,000 records
Tech provider for NHS England confirms data breach
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach affecting Horizon IT scandal victims; resulted in ICO reprimand for entirely preventable breach
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Data breach exposed personal data of customers including names and date of birth across several states
1 Dec 2025
High1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
Data breach exposed financial information of 24,862 customers on December 11, 2025
1 Dec 2025
High1 Dec 2025
Detroit-based behavioral healthcare provider experienced security incident with
Healthcare · 4,000 records
Detroit-based behavioral healthcare provider experienced security incident with unauthorized access; ~4,000 records impacted
1 Dec 2025
High1 Dec 2025
Leroy Merlin
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
Data breach affecting Horizon IT scandal victims with customer information exposed
1 Dec 2025
Critical1 Dec 2025
SK Telecom
Technology · Records not stated
Massive data leak affecting users; ordered to pay $67 per user compensation
1 Dec 2025
High1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
Data breach exposed financial information of 24,862 customers of irrigation products manufacturer
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Pet supply retailer breach exposed customer personal data including names, dates of birth in several states
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
South Korea's largest online retailer experienced massive data breach affecting nearly 34 million local users
1 Dec 2025
Critical1 Dec 2025
Marquis Software Solutions
Finance · Records not stated
Ransomware attack exposed 788,000 financial records and sensitive data of bank/credit union customers
1 Dec 2025
High1 Dec 2025
Home Depot
Retail · Records not stated
Exposed private GitHub token gave unauthorized access to private repositories and internal systems for approximately one year
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Security lapse exposing customers' personal data
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach affecting customers
1 Dec 2025
Critical1 Dec 2025
SK Telecom
Technology · Records not stated
Massive data leak; South Korea consumer agency ordered €67 per user compensation
1 Dec 2025
High1 Dec 2025
Home Depot
Retail · Records not stated
Exposed private GitHub token exposed internal systems for one year
1 Dec 2025
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
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