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.
5,319
Disclosures in the tracker, all years
2,034
Of those, indexed in 2026
89
Added in October
23
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 22 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.
72 incidents from 9 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.
- Japan19 Oct 2026Nikkei Inc.How they got in: stolen or reused passwords.BleepingComputer
- Japan16 Oct 2026Burger King JapanThe source does not say how they got in.Security Affairs
- Japan16 Oct 2026BK JapanThe source does not say how they got in.SecurityWeek
- Japan16 Oct 2026Al Jazeera Media NetworkHow they got in: a supplier or vendor that was compromised first.BleepingComputer
- Japan14 Oct 2026Healthcare and financial organisations globallyHow they got in: email made to look like it came from a trusted sender.The Hacker News
High1 Aug 2026
Law firm (breached)
Legal · 13,000 records
Cyberattack exposed hospital records on approximately 13,000 patients in New Jersey
1 Aug 2026
High1 Aug 2026
Thousands of NHS patient records
Healthcare · 900,000 records
Thousands of NHS patient records confirmed stolen during major ransomware cyberattack
1 Aug 2026
High1 Aug 2026
Home Depot
Retail · Records not stated
Exposed private GitHub token gave unauthorized access to internal systems for approximately one year
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
2025 network breach exposed sensitive healthcare billing data affecting 1.26 million people
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen in major ransomware attack disrupting healthcare services
1 Aug 2026
High1 Aug 2026
Home Depot
Retail · Records not stated
Exposed private GitHub token gave unauthorized access to private repos and internal systems for a year
1 Aug 2026
Critical1 Aug 2026
Spectrum (Charter)
Technology · Records not stated
Data breach exposed 4.9 million confirmed accounts, 42 million claimed by attackers
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
High1 Aug 2026
Estée Lauder
Retail · Records not stated
Employee PII including SSNs and payroll data exposed
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
High1 Aug 2026
Synnovis NHS Trust
Healthcare · 900,000 records
Ransomware attack stole thousands of patient records from Essex NHS trust
1 Aug 2026
High1 Aug 2026
Sandhills Medical Foundation
Healthcare · 170,000 records
Ransomware breach affected approximately 170,000 individuals in South Carolina
1 Aug 2026
Critical1 Aug 2026
Conduent
Government · 25,000,000 records
Ransomware attack on government contractor exposed data of at least 25 million people
1 Aug 2026
Critical1 Aug 2026
ANTS (French ID agency)
Government · 19,000,000 records
Cyberattack exposed 19 million records including personal data linked to identity documents
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
Critical1 Aug 2026
Meta
Technology · Records not stated
2019 breach exposed hundreds of millions of Facebook passwords, company fined $101.5M
1 Aug 2026
Medium1 Aug 2026
FirstClass
Sector not stated · Records not stated
Australian travel agency customer records compromised in alleged data breach
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,200,000 records
The disclosure as indexed does not name the organisation.
2025 ransomware attack exposed personal data of 1.2 million individuals
1 Aug 2026
Critical1 Aug 2026
Marquis
Finance · 672,000 records
Ransomware attack stealing 672K records including names, addresses, card numbers from fintech firm
1 Aug 2026
High1 Aug 2026
Law firm (New Jersey)
Healthcare · Records not stated
13K hospital patient records exposed in cyberattack
1 Aug 2026
High1 Aug 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in cyber attack, disclosed 6+ months after notification
1 Aug 2026
Critical1 Aug 2026
Otelier
Retail · Records not stated
Data on 500,000+ hotel guests exposed including customers from Marriott, Hilton, Hyatt brands
1 Aug 2026
High1 Aug 2026
New Jersey Law Firm
Legal · 13,000 records
Cyberattack exposed hospital records for nearly 13,000 patients in New Jersey
1 Aug 2026
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