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.
5,324
Disclosures in the tracker, all years
2,038
Of those, indexed in 2026
86
Added in October
22
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 21 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High31 Jul 2026
FirstClass Travel Agency
Sector not stated · Records not stated
Australian travel agency breached; customer records compromised
31 Jul 2026
Critical31 Jul 2026
French Telecom Subsidiaries
Technology · Records not stated
Data breach with cybersecurity vulnerabilities; fined €42 million by French regulator
31 Jul 2026
High31 Jul 2026
PNC Bank
Finance · 740,000 records
740,000 records exposed due to improper security and safeguarding of personally identifiable information
31 Jul 2026
High31 Jul 2026
FinWise
Finance · 689,000 records
689,000 users' unencrypted data accessed by former employee
31 Jul 2026
Critical31 Jul 2026
McLaren Health Care
Healthcare · Records not stated
Two ransomware breaches in 2023-2024 affected 3.2+ million patients, $14M settlement
31 Jul 2026
High31 Jul 2026
EY Vendor
Finance · Records not stated
Third-party vendor breach exposed tax client data after 15-day intrusion
31 Jul 2026
High31 Jul 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Data security incident affecting personal information, $40M settlement reached
31 Jul 2026
Critical31 Jul 2026
Meta (Facebook)
Technology · Records not stated
2019 breach exposed hundreds of millions of Facebook passwords
31 Jul 2026
High31 Jul 2026
KT Corporation
Sector not stated · Records not stated
Telecommunications company customer data breach in South Korea, resulted in $39M fine
31 Jul 2026
Critical31 Jul 2026
MCBS
Healthcare · 1,260,000 records
Medical billing firm breach exposed sensitive healthcare data for 1.26 million people
31 Jul 2026
Critical31 Jul 2026
KT Corp
Technology · Records not stated
Data breach resulting in massive fine from South Korea's Personal Information Protection Commission
31 Jul 2026
High31 Jul 2026
Cell C
Technology · Records not stated
Data breach confirmed following 2024 cyberattack affecting major South African telecom provider
31 Jul 2026
High31 Jul 2026
Partnered Health
Healthcare · Records not stated
Australian healthcare provider breach exposed personal information and medical details across 21 clinics
31 Jul 2026
Critical31 Jul 2026
U.S. Government Agencies
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024 including White House-linked passwords
31 Jul 2026
Critical31 Jul 2026
Gaming Accounts
Technology · Records not stated
Over 11 million gaming account credentials exposed in 2024 data leaks discovered by Kaspersky DFI
31 Jul 2026
High31 Jul 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
Data breach requiring $40M settlement in class action lawsuit
31 Jul 2026
Critical31 Jul 2026
Meta/Facebook
Technology · Records not stated
2019 breach exposed hundreds of millions of Facebook passwords; fined $101.5M
31 Jul 2026
Critical31 Jul 2026
Meta (2018 breach)
Technology · Records not stated
2018 data breach resulted in €251 million fine from EU privacy regulator in December 2024
31 Jul 2026
High31 Jul 2026
Synnovis
Healthcare · 900,000 records
Thousands of NHS patient records stolen during ransomware attack affecting Mid South Essex Foundation Trust
31 Jul 2026
High31 Jul 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in cyber attack, disclosed over 6 months after notification
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 to dark web
31 Jul 2026
Critical31 Jul 2026
Tribeca Film Festival
Sector not stated · 666,000 records
Unprotected database exposed 666,000 records including celebrity contact data with no password or encryption
31 Jul 2026
High31 Jul 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party data breach exposed patient information at hospital facilities
31 Jul 2026
High31 Jul 2026
Cencora
Retail · Records not stated
Data security incident affecting customers, $40M settlement reached
31 Jul 2026
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