Weekly briefing No. 41 published 4 Oct 2026
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.

5,306
Disclosures in the tracker, all years
2,020
Of those, indexed in 2026
68
Added in October
18
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 20 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

3,995 results · Disclosures in 2026. Clear filters

Critical7 Aug 2026
NYC Health + Hospitals
Healthcare · 1,800,000 records
1.8M records with biometrics and SSNs stolen
7 Aug 2026
High6 Aug 2026
Kirkland & Ellis
Legal · Records not stated
Law firm pulled into litigation over MOVEit data breach
6 Aug 2026
High6 Aug 2026
Evolve Bank
Finance · Records not stated
Data breach affecting third-party fintech company customers including Wise
6 Aug 2026
High6 Aug 2026
T-Mobile
Technology · Records not stated
Data breach affecting hundreds of thousands of Washington customers, notification law violations
6 Aug 2026
Critical6 Aug 2026
EVO Banco/Bankinter
Finance · 1,270,000 records
1.27 million records exposed via 2024 API vulnerability; financial and identity data compromised
6 Aug 2026
Critical6 Aug 2026
U.S. Government Civil Service
Government · Records not stated
Thousands of civil servants' passwords compromised since early 2024, including White House-linked credentials
6 Aug 2026
Medium6 Aug 2026
Platinum Technology
Government · Records not stated
Data incident exposed voter information in Sangamon County; no election system impact reported
6 Aug 2026
High6 Aug 2026
Law firm (unnamed)
Legal · 13,000 records
Breach exposed hospital patient records for 13K patients in New Jersey
6 Aug 2026
High6 Aug 2026
Allstate
Finance · Records not stated
Data breach exposed employee-related records in insurance company incident
6 Aug 2026
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
ERMI
Healthcare · 74,000 records
74K records exposed SSNs and medical data
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
ERMI LLC
Healthcare · 74,000 records
74K records with SSNs and medical data exposed
6 Aug 2026
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