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.

5,358
Disclosures in the tracker, all years
2,074
Of those, indexed in 2026
135
Added in October
18
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.

75 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 States27 Oct 2026NorthShore Health CentersThe source does not say how they got in.HIPAA Journal
  2. United States27 Oct 2026University of New Mexico Health SystemThe source does not say how they got in.The Record
  3. United States26 Oct 2026Chisholm, Persson & Ball, P.C.The source does not say how they got in.Vermont Attorney General
  4. United States26 Oct 2026Alpha Omega Alpha Honor Medical SocietyThe source does not say how they got in.Vermont Attorney General
  5. United States26 Oct 2026USForex Inc.The source does not say how they got in.California Attorney General
  6. United States26 Oct 2026Monmouth UniversityThe source does not say how they got in.Vermont Attorney General
  7. United States26 Oct 2026Denver Health Medical PlanThe source does not say how they got in.HIPAA Journal
  8. United States24 Oct 2026Brooklyn Counseling ServicesThe source does not say how they got in.Vermont Attorney General
  9. United States24 Oct 2026Northeastern Mental Health CenterThe source does not say how they got in.Vermont Attorney General
  10. United States23 Oct 2026Navigate 360, LLCThe source does not say how they got in.California Attorney General
  11. United States23 Oct 2026Apollo Management Holdings, L.P.The source does not say how they got in.California Attorney General
  12. United States23 Oct 2026RL Schreiber, Inc.The source does not say how they got in.Vermont Attorney General
Critical1 Nov 2025
Multiple (Password Leak)
Technology · Records not stated
1.3 billion unique passwords exposed in extensive data breach
1 Nov 2025
High1 Nov 2025
Unauthorized access
Education · Records not stated
Unauthorized access exposed donor records and personal information of alumni
1 Nov 2025
High1 Nov 2025
JSONFormatter and CodeBeautify
Technology · Records not stated
5GB of leaked credentials exposed passwords and API keys across critical sectors
1 Nov 2025
High1 Nov 2025
FirstClass
Sector not stated · Records not stated
Australian travel agency hit by alleged data breach with customer records compromised according to threat actor claims on underground forums.
1 Nov 2025
Critical1 Nov 2025
Coupang
Retail · 33,700,000 records
Data breach exposed personal information of 33.7 million customers in South Korea
1 Nov 2025
Critical1 Nov 2025
Pajemploi
Government · 1,200,000 records
French social security service for childcare suffered data breach affecting 1.2 million people
1 Nov 2025
High27 Oct 2025
MyVidster (2025)
Technology · 3,864,364 records
3,864,364 records exposed, Email addresses, Profile photos, Usernames
27 Oct 2025
Critical16 Oct 2025
Prosper
Finance · 17,605,276 records
17,605,276 records exposed, Browser user agent details, Credit status information, Dates of birth, Email addresses and 6 more
16 Oct 2025
Medium15 Oct 2025
Hello Cake
Healthcare · 22,907 records
22,907 records exposed, Dates of birth, Email addresses, Names, Phone numbers and 2 more
15 Oct 2025
High11 Oct 2025
Vietnam Airlines
Retail · 7,316,915 records
7,316,915 records exposed, Dates of birth, Email addresses, Loyalty program details, Names and 1 more
11 Oct 2025
High7 Oct 2025
Adpost
Technology · 3,339,512 records
3,339,512 records exposed, Email addresses, Names, Usernames
7 Oct 2025
High4 Oct 2025
Artists&Clients
Retail · 95,351 records
95,351 records exposed, Email addresses, IP addresses, Passwords, Usernames
4 Oct 2025
High3 Oct 2025
Latest Pilot Jobs
Technology · 118,864 records
118,864 records exposed, Email addresses, Names, Passwords, Usernames
3 Oct 2025
High3 Oct 2025
HomeRefill
Technology · 187,457 records
187,457 records exposed, Dates of birth, Email addresses, Names, Passwords and 1 more
3 Oct 2025
Critical1 Oct 2025
Dublin Airport
Sector not stated · Records not stated
Everest ransomware group stole 1.5 million passenger records
1 Oct 2025
High1 Oct 2025
PNC Financial Services Group
Finance · Records not stated
Data breach exposed 740,000 PII records; class action lawsuit filed
1 Oct 2025
Critical1 Oct 2025
Blue Cross-Blue Shield
Healthcare · Records not stated
Massive data breach; company allegedly knew about breach but delayed reporting
1 Oct 2025
Critical1 Oct 2025
Toppan Next Tech
Technology · Records not stated
Print vendor breach exposed supply chain risks affecting Singapore Police Force and major banks
1 Oct 2025
Critical1 Oct 2025
Blue Cross-Blue Shield
Healthcare · Records not stated
Massive data breach; lawsuit alleges company knew but delayed reporting
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
October 2025 breach exposed data from 38 million customer accounts including contact details and encrypted passwords
1 Oct 2025
Critical1 Oct 2025
Dublin Airport
Sector not stated · Records not stated
Everest ransomware group claimed theft of 1.5 million passenger records
1 Oct 2025
High1 Oct 2025
Capita
Technology · Records not stated
Data security breach resulting in £14 million fine from ICO for GDPR infringements
1 Oct 2025
Critical1 Oct 2025
Canadian Tire
Retail · 38,000,000 records
Data breach exposed personal information of 38 million customer accounts including contact details and encrypted passwords
1 Oct 2025
High1 Oct 2025
Capita
Technology · Records not stated
Data breach resulting in £14 million ICO fine for infringements of UK General Data Protection regulations
1 Oct 2025
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