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.
5,337
Disclosures in the tracker, all years
2,050
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 24 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.
74 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.
- Russia23 Oct 2026PingCAPHow they got in: stolen or reused passwords.SecurityWeek
High18 Sep 2026
DraftKings
Technology · Records not stated
Hacking incident exposing user account data
18 Sep 2026
High18 Sep 2026
KT
Technology · Records not stated
Data breach via illegal base stations exposing customer information
18 Sep 2026
High18 Sep 2026
PowerSchool
Education · Records not stated
Breach of educational platform exposing student and school data
18 Sep 2026
High18 Sep 2026
City of Helsinki
Government · Records not stated
Data breach affecting municipal systems and resident information
18 Sep 2026
High18 Sep 2026
Deutsche Bank
Finance · Records not stated
Data breach confirmed via ransomware attack
18 Sep 2026
Critical18 Sep 2026
Free Mobile and Free
Technology · Records not stated
Major data theft in France, $49M fine issued
18 Sep 2026
Critical18 Sep 2026
ApolloMD
Healthcare · 626,000 records
626,000 individuals impacted by data breach
18 Sep 2026
Critical18 Sep 2026
Allianz Life
Finance · 1,500,000 records
1.5 million individuals impacted by data breach
18 Sep 2026
High18 Sep 2026
DocketWise
Legal · 143,000 records
143,000 individuals impacted by data breach
18 Sep 2026
Critical18 Sep 2026
Columbia University
Education · 860,000 records
860,000 individuals impacted by data breach
18 Sep 2026
Critical18 Sep 2026
McLaren Health Care
Healthcare · Records not stated
740,000+ records stolen in ransomware attack
18 Sep 2026
Critical18 Sep 2026
MGM
Sector not stated · Records not stated
2019 data breach affecting customers, $45M settlement paid
18 Sep 2026
High18 Sep 2026
Workday
Technology · Records not stated
Social engineering attack targeting CRM exposed customer data
18 Sep 2026
High18 Sep 2026
Union Bank and Trust
Finance · Records not stated
2023 MOVEit software exploit exposed customer data; $2.4M settlement
18 Sep 2026
Critical18 Sep 2026
Welltok
Healthcare · 14,760,000 records
14.76 million individuals affected by MOVEit Transfer data breach in 2023
18 Sep 2026
High18 Sep 2026
Mizuno
Retail · Records not stated
Data breach confirmed after 2024 ransomware attack affecting customer data
18 Sep 2026
Critical18 Sep 2026
Free Mobile
Technology · 24,000,000 records
2024 data breach affecting 24 million customers; fined €42 million by French regulator for security violations
18 Sep 2026
Critical18 Sep 2026
U.S. Federal Agencies
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including compromised White House credentials
18 Sep 2026
Critical18 Sep 2026
MCBS
Healthcare · 1,200,000 records
Atlanta-based medical business management company data breach affecting 1.2 million individuals
18 Sep 2026
High18 Sep 2026
Highland Oncology Group
Healthcare · Records not stated
2025 ransomware attack on Arkansas-based cancer care practice, litigation settled
18 Sep 2026
Critical18 Sep 2026
Kinryū Labs Database
Sector not stated · Records not stated
Misconfigured APIS database exposed 220 million traveler records including passenger, crew and passport details
18 Sep 2026
Critical18 Sep 2026
AT&T
Technology · 109,000,000 records
Two separate 2024 incidents exposed data from over 100 million customers
18 Sep 2026
Critical18 Sep 2026
Trizetto Provider Solutions
Healthcare · 3,400,000 records
Unauthorized IT environment access exposed PHI of 3.4 million individuals
18 Sep 2026
Critical18 Sep 2026
T-Mobile
Technology · 76,600,000 records
2021 cyberattack exposed data of 76.6 million people including SSNs and driver's licenses
18 Sep 2026
Were you affected?