Intelligence · Disclosure tracker
Every public disclosure, dated and sourced.
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.
5,325
Disclosures in the tracker, all years
2,040
Of those, indexed in 2026
97
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 23 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical16 Apr 2026
McGraw Hill
Education · 13,500,136 records
13,500,136 records exposed, Email addresses, Names, Phone numbers, Physical addresses
16 Apr 2026
High12 Apr 2026
Hallmark
Retail · 1,736,520 records
1,736,520 records exposed, Email addresses, Names, Phone numbers, Physical addresses and 1 more
12 Apr 2026
Medium8 Apr 2026
My Lovely AI
Technology · 106,271 records
106,271 records exposed, Email addresses, Social media profiles
8 Apr 2026
High4 Apr 2026
SongTrivia2
Technology · 291,739 records
291,739 records exposed, Auth tokens, Avatars, Email addresses, Names and 2 more
4 Apr 2026
High4 Apr 2026
4 Apr 2026
High1 Apr 2026
Nissan
Sector not stated · Records not stated
Data breach involving third-party vendor holding customer information
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
46,666 patients affected, personal and health information exposed
1 Apr 2026
Critical1 Apr 2026
ANTS (France)
Government · 19,000,000 records
19 million records exposed from French national ID agency, personal data breach
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
April 2026 data breach led to eight class-action lawsuits over exposed customer payment and personal data
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Data breach in April 2026, triggered 8 class action lawsuits
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Ransomware attack on senior care provider
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Ransomware attack on senior care provider in California
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach affects 46,666 patients, exposing personal and health information
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
April 2026 data breach resulted in eight class-action lawsuits
1 Apr 2026
High1 Apr 2026
Line Yahoo
Technology · Records not stated
Data leak resulted in ending of Naver ties and shift in control debate in Japan
1 Apr 2026
Critical1 Apr 2026
ANTS (French ID Agency)
Government · 19,000,000 records
Major cyberattack exposed 19 million records from France's national identity agency
1 Apr 2026
Critical1 Apr 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee insider threat unlawfully accessed data for over two years; €31.8M fine imposed
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack with data security incident
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Senior care provider in California affected by ransomware attack with data security incident
1 Apr 2026
High1 Apr 2026
Veradigm
Healthcare · Records not stated
Electronic health record company had customer data stolen after vendor system infiltration
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach exposed personal and health records of approximately 46,666 patients.
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Customer data breach from April 2026, subject of 8 class action lawsuits
1 Apr 2026
High1 Apr 2026
Ryanair
Sector not stated · Records not stated
Breach exposing legal emails, flight data, and banking details claimed on hacker forum
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
De-identified health records of 500,000+ Britons offered for sale on Chinese website
1 Apr 2026
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