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.
5,274
Disclosures in the tracker, all years
1,988
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
Medium10 Feb 2026
Organisation not named
Healthcare · 5,600 records
The disclosure as indexed does not name the organisation.
5,600 records exposed, Dates of birth, Email addresses, Names, Places of birth and 1 more
10 Feb 2026
Medium10 Feb 2026
Organisation not named
Healthcare · 5,600 records
The disclosure as indexed does not name the organisation.
5,600 records exposed, Dates of birth, Email addresses, Names, Places of birth and 1 more
10 Feb 2026
Medium10 Feb 2026
Organisation not named
Healthcare · 5,600 records
The disclosure as indexed does not name the organisation.
5,600 records exposed, Dates of birth, Email addresses, Names, Places of birth and 1 more
10 Feb 2026
Medium10 Feb 2026
Toy Battles
Technology · 1,017 records
1,017 records exposed, Chat logs, Email addresses, IP addresses, Usernames
10 Feb 2026
Medium10 Feb 2026
Organisation not named
Healthcare · 5,600 records
The disclosure as indexed does not name the organisation.
5,600 records exposed, Dates of birth, Email addresses, Names, Places of birth and 1 more
10 Feb 2026
High6 Feb 2026
Substack
Technology · 663,121 records
663,121 records exposed, Email addresses, Phone numbers
6 Feb 2026
High5 Feb 2026
Betterment
Finance · 1,435,174 records
1,435,174 records exposed, Dates of birth, Device information, Email addresses, Employers and 5 more
5 Feb 2026
Critical1 Feb 2026
Conduent
Healthcare · 62,200,000 records
62.2 million people affected in third-largest US healthcare breach involving printing and document processing services
1 Feb 2026
High1 Feb 2026
Munson Healthcare
Healthcare · 120,000 records
120,000 patients' data compromised in data breach
1 Feb 2026
Critical1 Feb 2026
Mexican Government Agencies
Government · Records not stated
Multiple federal agencies breached via AI tools (Claude, ChatGPT); millions of records stolen Dec 2025-Feb 2026
1 Feb 2026
High1 Feb 2026
Anthem
Healthcare · Records not stated
Data breach impacting some Anthem members via Conduent
1 Feb 2026
High1 Feb 2026
Blue Shield of California
Healthcare · Records not stated
Third-party privacy breach affecting members
1 Feb 2026
High1 Feb 2026
Blue Shield of California
Healthcare · Records not stated
Third-party potential privacy breach affecting members' data
1 Feb 2026
High1 Feb 2026
Blue Shield of California
Healthcare · Records not stated
Third-party privacy breach notification to members; unauthorized access to member data
1 Feb 2026
Critical1 Feb 2026
Mexican Government Agencies
Government · Records not stated
Multiple federal agencies breached using AI tools (Claude, ChatGPT) millions of records exposed
1 Feb 2026
High1 Feb 2026
University of Pennsylvania
Education · Records not stated
ShinyHunters leaked confidential donor records and internal files
1 Feb 2026
Critical1 Feb 2026
AnMed
Healthcare · Records not stated
Ransomware cyberattack affecting multiple facilities, forced to operate in limited capacity
1 Feb 2026
High1 Feb 2026
Blue Shield of California
Healthcare · Records not stated
Third-party potential privacy breach exposing member data
1 Feb 2026
Critical1 Feb 2026
Mexican Government Agencies
Government · Records not stated
Hacker exploited AI tools to breach 9 federal government agencies, compromising millions of records
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack affecting patient records; clinics offline for over a week
1 Feb 2026
High1 Feb 2026
Munson Healthcare
Healthcare · 120,000 records
120K patients' data compromised in data breach
1 Feb 2026
Critical1 Feb 2026
Conduent
Technology · 25,000,000 records
At least 25 million people had personal data stolen from printing, payment, and document services company
1 Feb 2026
Critical1 Feb 2026
Mexican Government Agencies
Government · Records not stated
9 federal agencies breached using AI tools; occurred late Dec 2025-mid Feb 2026, millions of records stolen
1 Feb 2026
Critical1 Feb 2026
Mexican Government (9 agencies)
Government · Records not stated
9 Mexican federal government agencies breached via AI tools manipulation; millions of records exposed Dec 2025-Feb 2026
1 Feb 2026
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