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.
5,278
Disclosures in the tracker, all years
1,992
Of those, indexed in 2026
41
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 16 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,949 results · Disclosures in 2026. Clear filters
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patient records exposed in PEAR ransomware attack on billing company
1 Jul 2026
Critical1 Jul 2026
Puerto Rico Government Agency
Government · Records not stated
Cybersecurity loophole in government mapping service exposed 1 million social security numbers
1 Jul 2026
High1 Jul 2026
KT Corporation
Technology · Records not stated
Personal data breach via illegal base stations caused unauthorized micropayments
1 Jul 2026
High1 Jul 2026
Coca-Cola (Fairlife subsidiary)
Sector not stated · Records not stated
Ransomware attack resulted in theft of company data from dairy subsidiary
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on healthcare billing and practice-management company
1 Jul 2026
Critical1 Jul 2026
MCBS Medical Billing
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on billing and practice-management systems
1 Jul 2026
High1 Jul 2026
Hospital software vendor
Healthcare · Records not stated
Customer data breach from major healthcare software vendor via supply-chain attack
1 Jul 2026
Critical1 Jul 2026
Fortinet
Technology · Records not stated
FortiBleed campaign; 73,000+ devices affected; verified administrator credentials and VPN data exposed
1 Jul 2026
High1 Jul 2026
Evanston Township High School
Education · Records not stated
Cyberattack disrupted phone systems; students and parents advised to use email
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on billing system
1 Jul 2026
High1 Jul 2026
Police National Legal Database
Government · Records not stated
135,000 contact records stolen and leaked on dark web by ExfilSquad hacker group
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on medical billing systems
1 Jul 2026
High1 Jul 2026
KT (South Korea)
Technology · Records not stated
Personal data breach via illegal base stations causing unauthorized micropayment damages
1 Jul 2026
High1 Jul 2026
Valve
Technology · Records not stated
Steam hardware customer data stolen, affecting European customers
1 Jul 2026
Critical1 Jul 2026
Estée Lauder
Retail · Records not stated
Oracle E-Business Suite breach exposed SSNs, passports, health records via Clop campaign
1 Jul 2026
High1 Jul 2026
Healthcare advocacy vendor cybersecurity incident
Healthcare · Records not stated
Healthcare advocacy vendor cybersecurity incident exposed employee Social Security numbers
1 Jul 2026
High1 Jul 2026
Levi Strauss
Retail · Records not stated
Corporate data stolen via social engineering attack on 3 employee computers
1 Jul 2026
High1 Jul 2026
Cure Dental
Healthcare · Records not stated
Data breach exposed personally identifiable information of current and former patients
1 Jul 2026
High1 Jul 2026
Allstate
Finance · Records not stated
Data breach exposed employee-related records, part of pattern targeting insurers
1 Jul 2026
High1 Jul 2026
KT
Technology · Records not stated
South Korean telecom breach via illegal base stations, personal data and unauthorized micropayment damages
1 Jul 2026
High1 Jul 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party data breach compromised patient data
1 Jul 2026
Critical1 Jul 2026
Instructure
Education · Records not stated
Canvas platform supply chain breach generating 58% of all breach notices in 2026
1 Jul 2026
Critical1 Jul 2026
Coca-Cola Dairy Operations
Retail · Records not stated
Ransomware attack shut down dairy brand operations; data compromised
1 Jul 2026
High1 Jul 2026
fairlife (Coca-Cola)
Retail · Records not stated
Ransomware attack shut down dairy operations
1 Jul 2026
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