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.

5,352
Disclosures in the tracker, all years
2,066
Of those, indexed in 2026
125
Added in October
16
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 28 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.

74 incidents from 12 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 States26 Oct 2026Monmouth UniversityThe source does not say how they got in.Vermont Attorney General
  2. United States26 Oct 2026Denver Health Medical PlanThe source does not say how they got in.HIPAA Journal
  3. United States24 Oct 2026Brooklyn Counseling ServicesThe source does not say how they got in.Vermont Attorney General
  4. United States24 Oct 2026Northeastern Mental Health CenterThe source does not say how they got in.Vermont Attorney General
  5. United States23 Oct 2026RL Schreiber, Inc.The source does not say how they got in.Vermont Attorney General
  6. United States23 Oct 2026Ford Audio-Video Systems, LLCThe source does not say how they got in.Vermont Attorney General
  7. United States23 Oct 2026EyeMed Vision Care, LLCThe source does not say how they got in.Vermont Attorney General
  8. United States23 Oct 2026Alabama Fire CollegeThe source does not say how they got in.Vermont Attorney General
  9. United States23 Oct 2026UltraMobile ImagingThe source does not say how they got in.HIPAA Journal
  10. United States23 Oct 2026Washington GastroenterologyThe source does not say how they got in.HIPAA Journal
  11. United States23 Oct 2026Tarter Krinsky & DroginThe source does not say how they got in.HIPAA Journal
  12. United States23 Oct 2026Quest DiagnosticsThe source does not say how they got in.SecurityWeek
Critical1 Dec 2025
LastPass
Technology · 1,600,000 records
Data breach affecting 1.6 million people, UK fined £1.2 million
1 Dec 2025
High1 Dec 2025
Illuminate Education
Education · Records not stated
Data breach affecting Wisconsin edtech company, settled with FTC
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach exposed customer data
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Preventable data breach exposing Horizon IT scandal victims' personal information
1 Dec 2025
High1 Dec 2025
SK Telecom
Technology · Records not stated
Massive data leak affecting users, resulted in compensation ordered by Korean consumer agency
1 Dec 2025
Critical1 Dec 2025
Coupang
Retail · Records not stated
Massive data leak potentially involving nearly 34 million local customers in South Korea
1 Dec 2025
Critical1 Dec 2025
Marquis Software Solutions
Finance · Records not stated
Unauthorized access to 788,000 financial records of bank and credit customers
1 Dec 2025
High1 Dec 2025
Leroy Merlin France
Retail · Records not stated
Loyalty program data breach disclosed, customer data exposed in December 2025
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach resulted in accidental publishing of personal data of Horizon IT scandal victims
1 Dec 2025
High1 Dec 2025
DXS International
Healthcare · Records not stated
Healthcare tech provider for NHS England suffered ransomware attack and confirmed data breach
1 Dec 2025
Medium1 Dec 2025
Rain Bird
Sector not stated · 24,862 records
24,862 customers' financial information exposed
1 Dec 2025
Critical1 Dec 2025
Marquis Software Solutions
Finance · Records not stated
Ransomware attack exposed 788,000 financial records from bank and credit union customers
1 Dec 2025
High1 Dec 2025
Singing River Health System
Healthcare · 54,000 records
Ransomware attack by Anubis gang impacted 54,000 patients with stolen sensitive medical information
1 Dec 2025
High1 Dec 2025
Rain Bird
Sector not stated · 24,862 records
Data breach exposed financial information of 24,862 customers
1 Dec 2025
Medium1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
Data breach exposed financial information of 24,862 customers
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Customer personal data including names and dates of birth exposed
1 Dec 2025
Critical1 Dec 2025
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
1 million Social Security numbers exposed through cybersecurity loophole in government mapping service
1 Dec 2025
High1 Dec 2025
Huntsville Hospital
Healthcare · Records not stated
Third-party vendor breach compromised patient health information
1 Dec 2025
Critical1 Dec 2025
Massive Credential Compilation
Sector not stated · 2,000,000,000 records
2 billion emails and 1.2 billion passwords compromised in massive compilation leak
1 Dec 2025
Critical1 Dec 2025
Credential Breach (Multiple Sources)
Technology · 2,000,000,000 records
2 billion emails and 1.2 billion passwords compromised in massive data compilation
1 Dec 2025
Critical1 Dec 2025
Unknown (Compiled Data)
Technology · 2,000,000,000 records
2 billion emails and 1.2 billion passwords compromised in massive compilation
1 Dec 2025
Critical1 Dec 2025
Compiled Credential Database
Technology · 2,000,000,000 records
2 billion emails and 1.2 billion passwords compromised
1 Dec 2025
Critical1 Dec 2025
Multiple (Credential Compilation)
Sector not stated · 2,000,000,000 records
2 billion emails and 1.2 billion passwords compromised in massive compilation
1 Dec 2025
High1 Dec 2025
Marquis (Fintech)
Finance · Records not stated
Ransomware attack exposed banking customer data including personal information and financial records
1 Dec 2025
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