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.
5,374
Disclosures in the tracker, all years
2,088
Of those, indexed in 2026
6
Added in November
26
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 2 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical1 Jan 2025
Revolut
Finance · 75,000,000 records
75 million customer records allegedly exposed including credit card data and personal information
1 Jan 2025
Critical1 Jan 2025
Centers Laboratory
Healthcare · 540,000 records
540,000 patient records exposed in cyberattack by Worldleaks group
1 Jan 2025
Critical1 Jan 2025
Cerner
Healthcare · Records not stated
Hackers accessed electronic health records stored on legacy network in January breach
1 Jan 2025
High1 Jan 2025
FirstClass
Sector not stated · Records not stated
Customer records of Sydney-based travel agency allegedly breached by threat actor
1 Jan 2025
Critical1 Jan 2025
Otelier
Retail · Records not stated
Breach exposed data of 500K+ hotel guests from Marriott, Hilton, Hyatt and other brands
1 Jan 2025
High1 Jan 2025
PowerSchool Holdings Inc.
Education · Records not stated
Student and teacher data breached in education software provider incident
1 Jan 2025
High1 Jan 2025
KT Corp
Technology · Records not stated
South Korea telecom giant hit with substantial fine for data breach by Personal Information Protection Commission
1 Jan 2025
High1 Jan 2025
Tribeca Film Festival
Sector not stated · 666,000 records
Unprotected database exposed 666,000 records with celebrity contact information, no encryption
1 Jan 2025
High1 Jan 2025
KT Corporation
Technology · Records not stated
Customer data breach; South Korea fined telco $39 million for exposure
1 Jan 2025
Critical1 Jan 2025
Network breach
Healthcare · 1,260,000 records
Network breach exposed sensitive healthcare billing data affecting 1.26 million people
1 Jan 2025
Critical1 Jan 2025
Conduent Business Services
Sector not stated · 62,200,000 records
Data breach affected more than 62.2 million individuals
1 Jan 2025
Medium28 Dec 2024
85K student records exposed via PowerSchool
Education · Records not stated
85K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
180K student records exposed via PowerSchool
Education · Records not stated
180K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
90K student records exposed via PowerSchool
Education · Records not stated
90K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
98K student records exposed via PowerSchool
Education · Records not stated
98K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
160K student records exposed via PowerSchool
Education · Records not stated
160K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
180K student records exposed via PowerSchool
Education · Records not stated
180K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
130K student records exposed via PowerSchool
Education · Records not stated
130K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
270K student records exposed via PowerSchool
Education · Records not stated
270K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
200K student records exposed via PowerSchool
Education · Records not stated
200K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
85K student records exposed via PowerSchool
Education · Records not stated
85K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
180K student records exposed via PowerSchool
Education · Records not stated
180K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
90K student records exposed via PowerSchool
Education · Records not stated
90K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
98K student records exposed via PowerSchool
Education · Records not stated
98K student records exposed via PowerSchool
28 Dec 2024
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