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.
5,349
Disclosures in the tracker, all years
2,065
Of those, indexed in 2026
125
Added in October
17
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 27 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 12 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.
- Denmark27 Oct 2026ENGIEThe source does not say how they got in.BleepingComputer
- Denmark26 Oct 2026University of CopenhagenThe source does not say how they got in.BleepingComputer
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
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
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