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.
5,306
Disclosures in the tracker, all years
2,020
Of those, indexed in 2026
68
Added in October
18
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 20 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,995 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 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
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
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
High1 Jul 2026
Cyberattack on law firm
Legal · 13,000 records
Cyberattack on law firm exposed hospital records for nearly 13,000 patients in New Jersey
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 system
1 Jul 2026
Critical1 Jul 2026
Coca-Cola (fairlife)
Retail · Records not stated
Ransomware attack shut down dairy operations
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
Healthcare billing company; 1.26 million patient records exposed in PEAR ransomware attack
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 patient records exposed in PEAR ransomware attack on healthcare billing company
1 Jul 2026
High1 Jul 2026
River Bank & Trust
Finance · Records not stated
Data stolen in ransomware attack; hackers confirmed data deletion
1 Jul 2026
High1 Jul 2026
Law firm (unnamed)
Legal · 13,000 records
Cyberattack exposed hospital patient records for 13,000 patients in New Jersey to hackers
1 Jul 2026
Critical1 Jul 2026
Instructure Canvas
Education · Records not stated
Supply chain breach generated 58% of 2026 breach notices
1 Jul 2026
Critical1 Jul 2026
Coldcard
Technology · Records not stated
Data breach at Toronto bitcoin hardware wallet company; over $100M in bitcoin stolen
1 Jul 2026
High1 Jul 2026
Exact Sciences/Abbott Diagnostics
Healthcare · Records not stated
Data breach exposed sensitive patient information from at-home diagnostic tests
1 Jul 2026
High1 Jul 2026
Partnered Health (Australian Healthcare)
Healthcare · Records not stated
Personal information and medical details stolen from 21 clinics in cyber-attack
1 Jul 2026
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