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.

5,314
Disclosures in the tracker, all years
2,028
Of those, indexed in 2026
76
Added in October
21
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 21 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.

72 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 States21 Oct 2026Critical infrastructure organizations worldwideHow they got in: stolen or reused passwords.BleepingComputer
  2. United States20 Oct 2026Conduent Business Services, LLCThe source does not say how they got in.HIPAA Journal
  3. United States20 Oct 2026Central Ohio Primary Care PhysiciansHow they got in: stolen or reused passwords.HIPAA Journal
  4. United States20 Oct 2026Educational Testing ServiceThe source does not say how they got in.The Record
  5. United States20 Oct 2026Chevy Chase ClubThe source does not say how they got in.Vermont Attorney General
  6. United States20 Oct 2026Paradigm Healthcare ServicesThe source does not say how they got in.SecurityWeek
  7. United States19 Oct 2026Computer Task Group, IncorporatedThe source does not say how they got in.Vermont Attorney General
  8. United States19 Oct 2026Citizens BankThe source does not say how they got in.California Attorney General
  9. United States19 Oct 2026STS Aviation GroupThe source does not say how they got in.California Attorney General
  10. United States18 Oct 2026Stitch Connect IncThe source does not say how they got in.California Attorney General
  11. United States17 Oct 2026Catawba CountyThe source does not say how they got in.Vermont Attorney General
  12. United States16 Oct 2026Johnson Investment CounselThe source does not say how they got in.Vermont Attorney General
High2 Mar 2020
Ransomware encrypted city systems
Government · Records not stated
Ransomware encrypted city systems
2 Mar 2020
High2 Mar 2020
Ransomware encrypted city systems
Government · Records not stated
Ransomware encrypted city systems
2 Mar 2020
High2 Mar 2020
Ransomware encrypted city systems
Government · Records not stated
Ransomware encrypted city systems
2 Mar 2020
High2 Mar 2020
Ransomware encrypted city systems
Government · Records not stated
Ransomware encrypted city systems
2 Mar 2020
High2 Mar 2020
Macy's
Retail · 365,000 records
365K customer payment card records skimmed
2 Mar 2020
High2 Mar 2020
Epiq Global
Retail · Records not stated
Ryuk ransomware disrupted legal services across 80 offices
2 Mar 2020
High29 Feb 2020
City of Torrance CA
Government · Records not stated
DoppelPaymer ransomware stole 200GB including police records
29 Feb 2020
High27 Feb 2020
Simon Fraser University
Education · 200,000 records
Server breach exposed 200K records
27 Feb 2020
Critical27 Feb 2020
Straffic
Government · 48,580,249 records
48,580,249 records exposed, Email addresses, Genders, Names, Phone numbers and 1 more
27 Feb 2020
High27 Feb 2020
Simon Fraser University
Education · Records not stated
Server compromise exposed personal data of 250,000 students, staff, alumni
27 Feb 2020
Critical26 Feb 2020
Clearview AI (Canada/Global)
Technology · Records not stated
3B facial recognition images scraped from social media, Canadian privacy investigation
26 Feb 2020
Critical26 Feb 2020
Clearview AI
Technology · Records not stated
3B facial recognition images scraped from social media exposed in breach
26 Feb 2020
Critical25 Feb 2020
Marriott International (2020)
Retail · Records not stated
5.2M guest records exposed including loyalty accounts
25 Feb 2020
High22 Feb 2020
Slickwraps
Retail · 857,611 records
857,611 records exposed, Email addresses, Names, Phone numbers, Physical addresses and 1 more
22 Feb 2020
High21 Feb 2020
Slickwraps
Retail · 857,000 records
857K customer records exposed in data breach
21 Feb 2020
High20 Feb 2020
MGM Resorts
Retail · 3,081,321 records
3,081,321 records exposed, Dates of birth, Email addresses, Names, Phone numbers and 1 more
20 Feb 2020
Critical20 Feb 2020
CafePress
Technology · 23,000,000 records
23M user records exposed in data breach
20 Feb 2020
Critical19 Feb 2020
MGM Resorts (2020)
Retail · Records not stated
10.6M guest records leaked on hacker forum
19 Feb 2020
High18 Feb 2020
Affordable Care / DCA
Healthcare · 170,000 records
170K patient dental records exposed
18 Feb 2020
High17 Feb 2020
ISS World Services (Denmark)
Sector not stated · Records not stated
Ransomware disrupted global facilities management firm, 500,000 employees affected
17 Feb 2020
High13 Feb 2020
FedEx / TNT Express
Sector not stated · Records not stated
119K scanned document images exposed in S3 misconfiguration
13 Feb 2020
Medium12 Feb 2020
UPMC (2020)
Healthcare · Records not stated
36K employee records exposed in vendor breach
12 Feb 2020
High11 Feb 2020
Ring / Amazon (insider)
Technology · Records not stated
3,672 employee accesses to customer camera feeds investigated
11 Feb 2020
Critical11 Feb 2020
Estee Lauder
Retail · 440,000,000 records
440M records exposed in misconfigured database
11 Feb 2020
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