Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker
Disclosures in 2026
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.
5,276
Disclosures in the tracker, all years
1,989
Of those, indexed in 2026
34
Added in October
11
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 13 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,942 results · Disclosures in 2026. Clear filters
Critical24 Sep 2026
Marquis Software Solutions
Technology · Records not stated
Ransomware attack exposed 788,000 financial records and sensitive banking customer data
24 Sep 2026
Critical24 Sep 2026
AT&T
Technology · 109,000,000 records
Two separate incidents in 2024 exposed data from over 100 million customers
24 Sep 2026
Critical24 Sep 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee unlawfully accessed customer data over two years, serious security shortcomings
24 Sep 2026
Critical24 Sep 2026
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed sensitive data from millions of patients including health and insurance information.
24 Sep 2026
High24 Sep 2026
AnMed
Healthcare · Records not stated
Cyberattack on nonprofit health system forced facility closures and limited operational capacity
24 Sep 2026
Critical24 Sep 2026
Coupang
Retail · 33,700,000 records
Data breach exposed 33.7 million accounts, resulted in $409 million South Korea fine
24 Sep 2026
Critical24 Sep 2026
Qantas
Sector not stated · 5,670,000 records
Vishing attack on overseas contact center exposed 5.67 million customer records in 2025
24 Sep 2026
Medium23 Sep 2026
Canva
Sector not stated · Records not stated
A new dedicated leak site by threat actors calling themselves “The Seven Deadly Sins” lists Canva Pty Ltd among the sites that haven’t paid them. DataBreaches obtained additional details on the…
23 Sep 2026
High23 Sep 2026
KT Corporation
Technology · Records not stated
Data breach via illegal base stations affecting customers
23 Sep 2026
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
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