Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker
Disclosures in 2026
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.
5,282
Disclosures in the tracker, all years
1,995
Of those, indexed in 2026
41
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 16 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
3,949 results · Disclosures in 2026. Clear filters
High6 Aug 2026
Data breach
Healthcare · Records not stated
Data breach exposed SSNs and medical records of patients
6 Aug 2026
Critical6 Aug 2026
National Public Data
Sector not stated · 272,000,000 records
2024 cybersecurity incident with billions of personal records stolen and leaked
6 Aug 2026
High6 Aug 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee insider threat accessing customer data unlawfully over 2+ years; €31.8M lesson in breach transparency
6 Aug 2026
High6 Aug 2026
Capita
Technology · Records not stated
Cyber security breach resulted in £14 million ICO fine for GDPR infringements
6 Aug 2026
Medium6 Aug 2026
6 Aug 2026
Critical6 Aug 2026
Canada Life
Finance · 5,500,000 records
Threat actor claims 5.5 million records exposed, customer and employee data for sale
6 Aug 2026
High6 Aug 2026
U.S. Government
Government · Records not stated
Thousands of civil servants passwords exposed since early 2024 including White House linked credentials
6 Aug 2026
High6 Aug 2026
Synnovis/Mid South Essex NHS
Healthcare · 900,000 records
Thousands of NHS patient records stolen during major ransomware attack
6 Aug 2026
Critical6 Aug 2026
U.S. Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords exposed including White House-linked credentials since early 2024
6 Aug 2026
Critical6 Aug 2026
Bankinter EVO Banco
Finance · 1,270,000 records
API vulnerability exposed financial and identity data of 1.27 million records
6 Aug 2026
Medium6 Aug 2026
Hyundai Motor Turkiye
Sector not stated · Records not stated
Personnel and recruitment data stolen by CRPx0
6 Aug 2026
Critical6 Aug 2026
Klue Intelligence Platform
Technology · 2,022 records
200 firms breached via unrevoked 2022 credential
6 Aug 2026
Critical6 Aug 2026
Abbott Labs Exact Sciences
Healthcare · 30,000,000 records
30M patient records, 1M SSNs stolen by ShinyHunters
6 Aug 2026
Critical6 Aug 2026
Organisation not named
Technology · 165,000,000 records
The disclosure as indexed does not name the organisation.
165+ organizations breached through Snowflake customer accounts via identity-based attacks
6 Aug 2026
High6 Aug 2026
6 Aug 2026
Critical6 Aug 2026
6 Aug 2026
High6 Aug 2026
Intesa Sanpaolo
Finance · Records not stated
Employee insider threat unlawfully accessed customer data over 2+ years, resulting in €31.8m fine
6 Aug 2026
Critical6 Aug 2026
Unknown Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed sensitive protected health data on 1.3 million people to dark web
6 Aug 2026
High6 Aug 2026
Post Office Limited
Government · Records not stated
Data breach of Horizon IT scandal victims' records, reprimanded by ICO as entirely preventable
6 Aug 2026
Critical6 Aug 2026
Canada Life
Finance · 5,500,000 records
5.5 million records alleged stolen and put up for sale on dark web
6 Aug 2026
High6 Aug 2026
Cyberattack on law firm
Legal · 13,000 records
Cyberattack on law firm exposed hospital records of approximately 13,000 patients in New Jersey
6 Aug 2026
Critical6 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in major ransomware attack affecting healthcare services
6 Aug 2026
Critical6 Aug 2026
US Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords exposed since early 2024, including White House-linked credentials
6 Aug 2026
High6 Aug 2026
Valley Kidney Specialists
Healthcare · Records not stated
Data breach exposed personal and health information of patients
6 Aug 2026
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