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
37
Added in October
8
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 14 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,945 results · Disclosures in 2026. Clear filters
Critical1 May 2026
Canvas (Instructure)
Education · 275,000,000 records
Educational platform breached by ShinyHunters, 275 million records compromised, hackers threatened to leak data
1 May 2026
High1 May 2026
Instructure (Canvas)
Education · Records not stated
Ransomware attack, owner reached agreement with threat actors after data breach
1 May 2026
Critical1 May 2026
African National Congress (ANC)
Government · Records not stated
2 million private member records exposed and offered for sale by hacker group
1 May 2026
Medium1 May 2026
Aman
Retail · 215,563 records
215,563 records exposed, Dates of birth, Email addresses, Genders, Language preferences and 6 more
1 May 2026
High27 Apr 2026
Pitney Bowes
Technology · 8,243,989 records
8,243,989 records exposed, Email addresses, Job titles, Names, Phone numbers and 1 more
27 Apr 2026
High27 Apr 2026
ADT
Government · 30,000 records
5,488,888 records exposed, Dates of birth, Email addresses, Names, Partial government issued IDs and 2 more
27 Apr 2026
High26 Apr 2026
Udemy
Finance · 1,401,259 records
1,401,259 records exposed, Email addresses, Employers, Job titles, Names and 3 more
26 Apr 2026
High24 Apr 2026
Carnival
Technology · 7,531,359 records
7,531,359 records exposed, Dates of birth, Email addresses, Genders, Geographic locations and 3 more
24 Apr 2026
High17 Apr 2026
Amtrak
Retail · 2,147,679 records
2,147,679 records exposed, Email addresses, Names, Physical addresses, Support tickets
17 Apr 2026
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
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