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
1,991
Of those, indexed in 2026
36
Added in October
13
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.
3,944 results · Disclosures in 2026. Clear filters
Critical1 Feb 2026
Multiple Organizations (Credential Compilation)
Technology · 149,000,000 records
Massive credential leak exposing 149 million passwords including 48 million Gmail accounts and other platform credentials
1 Feb 2026
High1 Feb 2026
Munson Healthcare
Healthcare · 120,000 records
120,000 patients' data compromised in data breach involving one of their service providers
1 Feb 2026
Critical1 Feb 2026
Mexican Federal Government Agencies
Government · Records not stated
Hacker breached 9 Mexican government agencies using Claude Code and ChatGPT, exploiting AI tools posing as bug bounty participant
1 Feb 2026
Critical1 Feb 2026
Multiple platforms
Technology · Records not stated
149 million stolen passwords exposed publicly including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Credential database (massive leak)
Sector not stated · Records not stated
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Massive Credential Compilation
Technology · 149,000,000 records
149 million passwords exposed including 48 million Gmail accounts publicly exposed
1 Feb 2026
Critical1 Feb 2026
Credential database (unnamed)
Sector not stated · 149,000,000 records
149 million passwords exposed in massive credential leak, including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Credential Database (Unknown Source)
Technology · Records not stated
149 million stolen passwords publicly exposed, including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Organisation not named
Technology · 149,000,000 records
The disclosure as indexed does not name the organisation.
149 million passwords exposed including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Unknown (Compiled Credential Database)
Technology · 149,000,000 records
149 million passwords exposed including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Credential Database Compilation
Technology · 149,000,000 records
149 million passwords and 48 million Gmail accounts exposed
1 Feb 2026
Critical1 Feb 2026
Multiple organizations (Credential compilation)
Technology · Records not stated
149 million stolen passwords exposed publicly, including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Multiple (Credential compilation)
Technology · 149,000,000 records
149 million passwords exposed in massive credential leak including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
McLaren Health Care
Healthcare · Records not stated
Two ransomware breaches in 2023-2024 affecting 3.2M victims
1 Feb 2026
Critical1 Feb 2026
Mass Credential Database
Sector not stated · Records not stated
149 million stolen passwords exposed publicly online including 48 million Gmail accounts
1 Feb 2026
High1 Feb 2026
Conduent (Anthem)
Healthcare · Records not stated
Data breach impacted some Anthem health insurance members; contained with no evidence of misuse
1 Feb 2026
Critical1 Feb 2026
Multiple Sources (Credential Aggregation)
Technology · Records not stated
149 million stolen passwords and 48 million Gmail credentials exposed in massive database leak
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disrupted patient records access and clinic operations
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disrupted patient records access and clinic operations for over a week
1 Feb 2026
High1 Feb 2026
Ransomware attack and data
Healthcare · Records not stated
Ransomware attack and data leak exposed Multiethnic Cohort Study data including driver's license numbers and voter registration
1 Feb 2026
Critical1 Feb 2026
Various (Credential Compilation)
Technology · Records not stated
149 million stolen passwords found publicly exposed online including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
Multiple Organizations
Technology · 149,000,000 records
149 million passwords exposed in credential database leak including 48 million Gmail accounts
1 Feb 2026
Critical1 Feb 2026
TriZetto
Healthcare · Records not stated
Healthcare tech provider breach affecting over 3 million Americans from 2024 incident
1 Feb 2026
High1 Feb 2026
Conduent/Anthem
Healthcare · Records not stated
Data breach impacts some Anthem members; breach contained with no evidence of misuse
1 Feb 2026
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