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.
5,365
Disclosures in the tracker, all years
2,079
Of those, indexed in 2026
138
Added in October
17
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 29 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Worldwide · How they got in
Incidents worldwide, by country.
76 incidents from 12 countries in the last 90 days, each from a public source and reviewed before it is shown. Where the source says how the attackers got in, the row says so.
- Singapore22 Oct 2026GenesysThe source does not say how they got in.The Hacker News
High31 Jul 2026
FRANCE TRAVAIL
Government · Records not stated
Hackers breached information system in Q1 2024, resulting in €5 million fine from CNIL
31 Jul 2026
High31 Jul 2026
TransUnion
Finance · 37,000 records
2019 breach exposed 37,000 people's credit and personal data
31 Jul 2026
High31 Jul 2026
Mizuno
Retail · Records not stated
Japanese sportswear company confirms data breach following 2024 ransomware attack affecting customers
31 Jul 2026
Critical31 Jul 2026
Meta
Technology · Records not stated
2018 breach resulting in €251 million GDPR fine by EU privacy regulator
31 Jul 2026
High31 Jul 2026
CommonSpirit Health
Healthcare · 19,027 records
19,027 patient records exposed with personal and medical information
31 Jul 2026
High31 Jul 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in ransomware cyberattack by Synnovis
31 Jul 2026
Critical31 Jul 2026
TriZetto
Healthcare · 3,400,000 records
3.4 million people's health and personal data stolen in 2024 cyberattack
31 Jul 2026
Critical31 Jul 2026
US Government Agencies
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House linked passwords
31 Jul 2026
High31 Jul 2026
Gaming Accounts (Multiple)
Technology · Records not stated
11 million gaming account credentials exposed
31 Jul 2026
Critical31 Jul 2026
Medical Billing Company (Unnamed)
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data of 1.3 million people leaked to dark web
31 Jul 2026
High31 Jul 2026
Tribeca Festival
Sector not stated · 666,000 records
Data leak exposed 666,000 records including celebrity contact information
31 Jul 2026
Critical31 Jul 2026
Charter Spectrum
Technology · 42,000,000 records
Data breach exposed 4.9M confirmed accounts; ShinyHunters claims 42M records stolen
31 Jul 2026
Critical31 Jul 2026
Bankinter / EVO Banco
Finance · 1,270,000 records
API vulnerability exposed financial and identity data of 1.27 million records in 2024
31 Jul 2026
Critical31 Jul 2026
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed sensitive health and insurance data from millions of patients
31 Jul 2026
Critical31 Jul 2026
Medical Billing Company (unnamed)
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people; leaked to dark web
31 Jul 2026
Critical31 Jul 2026
McLaren Health Care
Healthcare · Records not stated
Two ransomware breaches in 2023-2024 affected 3.2 million victims; settled lawsuit for $14M
31 Jul 2026
High31 Jul 2026
Transport for London
Government · Records not stated
Cyber attack on London transport network infrastructure cost £39M; two hackers jailed
31 Jul 2026
Critical31 Jul 2026
Qantas
Sector not stated · 5,670,000 records
Vishing attack exposed 5.67 million customer records
31 Jul 2026
High31 Jul 2026
South Florida Injury Centers
Healthcare · 1,525 records
Data breach exposed SSNs and medical records of 1,525 individuals
31 Jul 2026
High31 Jul 2026
Ernst & Young (EY)
Finance · Records not stated
Third-party vendor breach exposed sensitive tax client data after 81-day notification delay
31 Jul 2026
High31 Jul 2026
Tribeca Film Festival
Sector not stated · 666,000 records
Unprotected database exposed 666,000 records including celebrity contact information
31 Jul 2026
Critical31 Jul 2026
Centers Laboratory
Healthcare · 540,000 records
2025 cyberattack by Worldleaks exposed 540,000 patient records
31 Jul 2026
High31 Jul 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach exposed personal and health records of 46,666 patients
31 Jul 2026
Critical31 Jul 2026
Bankinter/EVO Banco
Finance · 1,270,000 records
2024 API vulnerability exposed financial and identity data of 1.27 million records
31 Jul 2026
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