Weekly briefing No. 41 published 4 Oct 2026
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.

5,310
Disclosures in the tracker, all years
2,025
Of those, indexed in 2026
76
Added in October
22
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.

Worldwide · How they got in

Incidents worldwide, by country.

69 incidents from 11 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.

  1. United States20 Oct 2026Paradigm Healthcare ServicesThe source does not say how they got in.SecurityWeek
  2. United States19 Oct 2026Computer Task Group, IncorporatedThe source does not say how they got in.Vermont Attorney General
  3. United States19 Oct 2026Citizens BankThe source does not say how they got in.California Attorney General
  4. United States19 Oct 2026STS Aviation GroupThe source does not say how they got in.California Attorney General
  5. United States18 Oct 2026Stitch Connect IncThe source does not say how they got in.California Attorney General
  6. United States17 Oct 2026Catawba CountyThe source does not say how they got in.Vermont Attorney General
  7. United States16 Oct 2026A telecom managed service providerHow they got in: a known flaw in software the victim ran.Security Affairs
  8. United States16 Oct 2026Bankruptcy Noticing CenterThe source does not say how they got in.Infosecurity Magazine
  9. United States16 Oct 2026American Collection Medical AgencyThe source does not say how they got in.HIPAA Journal
  10. United States16 Oct 2026Mid Florida Dermatology & Plastic SurgeryThe source does not say how they got in.HIPAA Journal
  11. United States16 Oct 2026Anne Arundel CountyThe source does not say how they got in.The Record
  12. United States15 Oct 2026BAE SystemsThe source does not say how they got in.The Record
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
Critical6 Aug 2026
Banyumas Regency Government
Government · Records not stated
2M government records leaked
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
Critical6 Aug 2026
Conduent
Healthcare · 62,200,000 records
Data breach exposed 62.2 million records, third-largest US healthcare hack
6 Aug 2026
Medium6 Aug 2026
Greene County USA
Government · Records not stated
Tax and court payment systems taken offline by ransomware
6 Aug 2026
Medium6 Aug 2026
Liechtenstein Government Registry
Government · Records not stated
31K beneficial ownership records exposed
6 Aug 2026
High6 Aug 2026
Basic-Fit Gym Group
Retail · Records not stated
1M member bank and personal data breached
6 Aug 2026
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