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.
5,287
Disclosures in the tracker, all years
2,001
Of those, indexed in 2026
49
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical23 Sep 2026
DISA Global Solutions
Sector not stated · 3,300,000 records
Data breach affecting more than 3.3 million people in 2024
23 Sep 2026
High23 Sep 2026
Sax
Legal · Records not stated
Accounting firm disclosed 2024 data breach impacting 220,000
23 Sep 2026
High23 Sep 2026
Pierce County Library
Education · 340,000 records
Data breach impacting 340,000 individuals
23 Sep 2026
High23 Sep 2026
Centers Laboratory
Healthcare · 540,000 records
Data breach affecting 540,000 individuals
23 Sep 2026
Medium23 Sep 2026
Lovesac
Retail · Records not stated
Data breach confirmed following ransomware attack
23 Sep 2026
High23 Sep 2026
Kaplan
Education · Records not stated
Education company data breach impacting multiple individuals
23 Sep 2026
High23 Sep 2026
Paylogix
Technology · Records not stated
Employee benefits platform breach with financial data stolen via Akira ransomware
23 Sep 2026
High23 Sep 2026
Columbia University
Education · Records not stated
Hacker stole SSNs and other data from university
23 Sep 2026
High23 Sep 2026
Covenant Health
Healthcare · 480,000 records
Nearly 480,000 people impacted in data breach
23 Sep 2026
Critical23 Sep 2026
700Credit
Finance · Records not stated
Data breach affecting millions of people
23 Sep 2026
Critical23 Sep 2026
Prosper
Finance · 20,000,000 records
Nearly 20 million people affected in data breach
23 Sep 2026
Critical23 Sep 2026
Unlimited Technology Systems
Technology · 3,800,000 records
3.8 million people impacted in data breach
23 Sep 2026
Critical23 Sep 2026
TransUnion
Finance · 4,400,000 records
4.4 million people impacted with personal information including Social Security numbers exposed
23 Sep 2026
High23 Sep 2026
Optus
Technology · Records not stated
2022 cyber breach involving customer data, privacy regulator sued for breach of privacy laws
23 Sep 2026
High23 Sep 2026
Renault Group
Retail · Records not stated
UK customer data stolen in third-party breach affecting auto industry
23 Sep 2026
Critical23 Sep 2026
SK Telecom
Technology · Records not stated
Massive data leak; ordered to pay 100,000 won ($67) compensation per affected user
23 Sep 2026
High23 Sep 2026
Free Mobile and Free
Technology · Records not stated
Data theft affecting thousands of customers; fined €49 million by CNIL with 2500+ complaints
23 Sep 2026
Critical23 Sep 2026
French Telecom Subsidiaries
Technology · 24,000,000 records
2024 breach of 24 million customers; fined €42M for security vulnerabilities and lack of basic controls
23 Sep 2026
High23 Sep 2026
Lands' End
Retail · Records not stated
Data breach impacted clothing retailer customers; case settled with compensation
23 Sep 2026
Critical23 Sep 2026
Ransomware attack
Healthcare · 1,200,000 records
Ransomware attack exposed personal data of 1.2 million individuals
23 Sep 2026
High23 Sep 2026
Bedfordshire Hospital
Healthcare · Records not stated
Cyber attack exposed patient names, NHS numbers and test results
23 Sep 2026
High23 Sep 2026
Essex NHS Trust
Healthcare · 900,000 records
NHS trust breach compromised thousands of patient records, disclosed over 6 months after notification
23 Sep 2026
High22 Sep 2026
KT
Technology · Records not stated
Data breach via illegal base stations, fined 54 billion Won
22 Sep 2026
Critical22 Sep 2026
Free Mobile
Technology · Records not stated
Major data theft resulting in €49 million fine from CNIL France
22 Sep 2026
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