Weekly briefing No. 42 published 30 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.

5,438
Disclosures in the tracker, all years
2,152
Of those, indexed in 2026
89
Added in November
29
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 11 Nov 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.

79 incidents from 9 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 States10 Nov 2026Premier Business Solutions, LLCThe source does not say how they got in.Vermont Attorney General
  2. United States10 Nov 2026Sutherland Healthcare SolutionsThe source does not say how they got in.HIPAA Journal
  3. United States9 Nov 2026CirrusThe source does not say how they got in.Vermont Attorney General
  4. United States9 Nov 2026The Atlantic Federal Credit UnionThe source does not say how they got in.Vermont Attorney General
  5. United States9 Nov 2026Cornick, Garber & Sandler, LLPThe source does not say how they got in.California Attorney General
  6. United States9 Nov 2026Kalahari Management Co. LLCThe source does not say how they got in.California Attorney General
  7. United States9 Nov 2026Baker Tilly Advisory Group, LPThe source does not say how they got in.California Attorney General
  8. United States9 Nov 2026The Community College of Beaver CountyThe source does not say how they got in.Vermont Attorney General
  9. United States9 Nov 2026Telecare HealthThe source does not say how they got in.California Attorney General
  10. United States6 Nov 2026Zelenkofske Alexrod, LLCThe source does not say how they got in.Vermont Attorney General
  11. United States6 Nov 2026Alma Realty CorporationThe source does not say how they got in.Vermont Attorney General
  12. United States6 Nov 2026Mueller Water Products, Inc.The source does not say how they got in.Vermont Attorney General
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
Medium3 Aug 2023
OneMain Financial
Finance · 46,000 records
46K customer records exposed
3 Aug 2023
High3 Aug 2023
270K patient records exposed in Rhysida ransomware
Healthcare · 270,000 records
270K patient records exposed in Rhysida ransomware
3 Aug 2023
Critical3 Aug 2023
Prospect Medical Holdings (tech)
Technology · 1,300,000 records
1.3M patient records exposed across 16 hospitals in Rhysida ransomware
3 Aug 2023
Medium3 Aug 2023
Marquette University
Education · Records not stated
95K student and employee records exposed
3 Aug 2023
Critical3 Aug 2023
Prospect Medical Holdings
Healthcare · 1,300,000 records
1.3M patient records exposed in Rhysida ransomware across 16 hospitals
3 Aug 2023
High2 Aug 2023
MagicDuel
Technology · 138,443 records
138,443 records exposed, Email addresses, IP addresses, Nicknames, Passwords
2 Aug 2023
Medium2 Aug 2023
Hartford Financial Services
Finance · Records not stated
64K policyholder records exposed
2 Aug 2023
Critical1 Aug 2023
Information Commissioner's Office
Government · Records not stated
Afghan spreadsheet data breach with sensitive government information exposed
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information; incident disclosed August 2023
1 Aug 2023
Critical1 Aug 2023
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Afghan spreadsheet data breach exposing sensitive information through ICO
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence (UK)
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information, investigated by ICO
1 Aug 2023
Critical1 Aug 2023
Ministry of Defence (MoD)
Government · Records not stated
Afghan spreadsheet data breach exposed sensitive information
1 Aug 2023
Medium1 Aug 2023
McLaren Port Huron
Healthcare · 38,000 records
38K patient records exposed in BlackCat ransomware
1 Aug 2023
Medium1 Aug 2023
McLaren Northern Michigan
Healthcare · 62,000 records
62K patient records exposed
1 Aug 2023
Medium1 Aug 2023
McLaren Greater Lansing
Healthcare · 94,000 records
94K patient records exposed
1 Aug 2023
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