Weekly briefing No. 41 published 4 Oct 2026
Disclosure tracker › Disclosures in 2025
Intelligence · Disclosure tracker

Disclosures in 2025

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.

5,278
Disclosures in the tracker, all years
1,991
Of those, indexed in 2026
37
Added in October
7
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 15 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

980 results · Disclosures in 2025. Clear filters

High27 Dec 2025
WIRED
Technology · 2,364,431 records
2,364,431 records exposed, Dates of birth, Display names, Email addresses, Genders and 4 more
27 Dec 2025
High26 Dec 2025
Utair
Government · 401,400 records
401,400 records exposed, Dates of birth, Email addresses, Genders, Loyalty program details and 4 more
26 Dec 2025
Critical24 Dec 2025
Медицинская лаборатория Гемотест (Gemotest)
Healthcare · 6,341,495 records
6,341,495 records exposed, Dates of birth, Email addresses, Genders, Government issued IDs and 4 more
24 Dec 2025
High18 Dec 2025
The Botting Network
Technology · 96,320 records
96,320 records exposed, Dates of birth, Email addresses, Passwords, Usernames
18 Dec 2025
Medium18 Dec 2025
AUTOSUR
Technology · 487,226 records
487,226 records exposed, Email addresses, Names, Phone numbers, Physical addresses and 3 more
18 Dec 2025
High17 Dec 2025
Web Hosting Talk
Technology · 515,149 records
515,149 records exposed, Email addresses, IP addresses, Passwords, Usernames
17 Dec 2025
High6 Dec 2025
KinoKong
Technology · 817,808 records
817,808 records exposed, Email addresses, IP addresses, Names, Passwords and 1 more
6 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Tech provider confirms data breach
1 Dec 2025
High1 Dec 2025
Mixpanel
Technology · Records not stated
Data breach at analytics platform
1 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Confirmed data breach at technology provider
1 Dec 2025
Critical1 Dec 2025
Conduent
Healthcare · 62,200,000 records
62.2 million people affected in healthcare data breach, third-largest US healthcare hack ever
1 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Tech provider confirmed data breach affecting NHS England
1 Dec 2025
Medium1 Dec 2025
Organisation not named
Healthcare · 4,000 records
The disclosure as indexed does not name the organisation.
Unauthorized access to behavioral healthcare provider data affecting approximately 4,000 individuals
1 Dec 2025
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
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