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.
5,342
Disclosures in the tracker, all years
2,054
Of those, indexed in 2026
118
Added in October
15
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 26 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical1 Jun 2025
Unnamed medical billing company
Healthcare · 1,300,000 records
Ransomware attack leaked protected health data on 1.3 million people
1 Jun 2025
Critical1 Jun 2025
Unidentified Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed protected health data on 1.3 million people to dark web
1 Jun 2025
Critical1 Jun 2025
Paraguayan Government
Government · 7,400,000 records
7.4 million records containing PII of Paraguayan citizens offered for sale
1 Jun 2025
Critical1 Jun 2025
MCBS Medical Billing
Healthcare · 1,300,000 records
PEAR ransomware attack exposed health data on 1.3 million patients, including protected health information
1 Jun 2025
Critical1 Jun 2025
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack affecting healthcare billing and practice-management
1 Jun 2025
Critical1 Jun 2025
Unnamed Medical Billing Company
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people, leaked to dark web
1 Jun 2025
Critical1 Jun 2025
Medical billing company
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people, leaked to dark web
1 Jun 2025
Critical1 Jun 2025
Aflac Insurance
Finance · 1,300,000 records
Data breach exposed 22.65 million individuals
1 Jun 2025
High1 Jun 2025
Essex NHS Trust
Healthcare · 900,000 records
Patient records stolen in cyber attack, disclosed 6+ months after notification
1 Jun 2025
Critical1 Jun 2025
Medical Billing Company (Unnamed)
Healthcare · 1,300,000 records
Ransomware attack exposed protected health data on 1.3 million people to dark web
1 Jun 2025
Critical1 Jun 2025
Canada Life
Finance · 5,500,000 records
5.5 million customer, employee, and corporate records exposed via Salesforce data leak
1 Jun 2025
Critical1 Jun 2025
Medical Billing Company (unnamed)
Healthcare · Records not stated
2025 ransomware attack exposed 1.3 million protected health records leaked to dark web
1 Jun 2025
Critical1 Jun 2025
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
1 Jun 2025
Critical1 Jun 2025
Medical Billing Company
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people, leaked to dark web
1 Jun 2025
Critical1 Jun 2025
Paraguay Government
Government · 7,400,000 records
7.4 million records containing PII of Paraguayan citizens offered for sale by cybercriminals
1 Jun 2025
Critical1 Jun 2025
Aflac
Finance · 1,300,000 records
Data breach exposed 22.65 million individual records in June 2025
1 Jun 2025
Critical1 Jun 2025
Ahold Delhaize
Retail · 2,200,000 records
Cyber-attack on US operations exposed personal data of over 2.2 million customers
1 Jun 2025
Critical27 May 2025
Free
Finance · 13,926,173 records
13,926,173 records exposed, Bank account numbers, Dates of birth, Genders, Names and 2 more
27 May 2025
Medium22 May 2025
Fédération Francaise de Rugby
Government · 281,977 records
281,977 records exposed, Dates of birth, Email addresses, Names, Phone numbers
22 May 2025
Critical8 May 2025
OnRPG
Retail · 1,047,640 records
1,047,640 records exposed, Email addresses, IP addresses, Passwords, Usernames
8 May 2025
High1 May 2025
Magna Hospitality Group
Sector not stated · Records not stated
Told state regulators an unauthorized actor copied files from its systems in May 2025; disclosure came about 17 months later.
1 May 2025
High1 May 2025
LexisNexis
Sector not stated · 364,000 records
Data broker breach exposed personal information of over 364,000 people
1 May 2025
Critical1 May 2025
Kettering Health
Healthcare · 1,700,000 records
Ransomware attack affected 1.7 million individuals, Ohio health system
1 May 2025
Critical1 May 2025
UK Legal Aid Agency
Government · Records not stated
Hackers accessed large amount of information from Ministry of Justice system
1 May 2025
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