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.

5,369
Disclosures in the tracker, all years
2,083
Of those, indexed in 2026
146
Added in October
23
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 30 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.

78 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 States29 Oct 2026The Research Foundation for Mental Health, Inc.The source does not say how they got in.Vermont Attorney General
  2. United States29 Oct 2026Del Monte Foods Corporation II Inc.The source does not say how they got in.California Attorney General
  3. United States29 Oct 2026Bangkok Bank PCL - New York BranchThe source does not say how they got in.California Attorney General
  4. United States29 Oct 2026IRhythm TechnologiesThe source does not say how they got in.SecurityWeek
  5. United States28 Oct 2026Photon HealthHow they got in: a known flaw in software the victim ran.California Attorney General
  6. United States28 Oct 2026CodeSecure Inc.The source does not say how they got in.Vermont Attorney General
  7. United States28 Oct 202611252227 Canada Inc.The source does not say how they got in.Vermont Attorney General
  8. United States28 Oct 2026Troutman Pepper Locke LLPThe source does not say how they got in.California Attorney General
  9. United States28 Oct 2026Legacy CooperativeThe source does not say how they got in.Vermont Attorney General
  10. United States28 Oct 2026Metro Tulsa Foot & Ankle SpecialistThe source does not say how they got in.Vermont Attorney General
  11. United States28 Oct 2026Quantum Health, Inc.The source does not say how they got in.Vermont Attorney General
  12. United States27 Oct 2026Sarasota US Topco, Inc. d/b/a Sarku Japan (“Sarku”)The source does not say how they got in.California Attorney General
High1 Jan 2025
Quantum Health
Healthcare · Records not stated
Healthcare advocacy vendor breach exposed employees' social security numbers via vendor data compromise
1 Jan 2025
Critical1 Jan 2025
Coldcard
Finance · Records not stated
Hardware wallet data breach; over $100M worth of bitcoin theft linked to cyberattack
1 Jan 2025
Critical1 Jan 2025
Exact Sciences/Abbott
Healthcare · Records not stated
Patient data from at-home diagnostic tests exposed; sensitive personal information compromised
1 Jan 2025
High1 Jan 2025
Suno
Technology · Records not stated
Customer records exposed; training data breach revealed how AI music company trains models
1 Jan 2025
Critical1 Jan 2025
Hotel Industry (Otelier)
Retail · Records not stated
500K hotel guests' personal information exposed after Otelier platform breach
1 Jan 2025
Critical1 Jan 2025
Revolut
Finance · 75,000,000 records
75 million customer records allegedly exposed including credit card data and personal information
1 Jan 2025
Critical1 Jan 2025
Centers Laboratory
Healthcare · 540,000 records
540,000 patient records exposed in cyberattack by Worldleaks group
1 Jan 2025
Critical1 Jan 2025
Cerner
Healthcare · Records not stated
Hackers accessed electronic health records stored on legacy network in January breach
1 Jan 2025
High1 Jan 2025
FirstClass
Sector not stated · Records not stated
Customer records of Sydney-based travel agency allegedly breached by threat actor
1 Jan 2025
Critical1 Jan 2025
Otelier
Retail · Records not stated
Breach exposed data of 500K+ hotel guests from Marriott, Hilton, Hyatt and other brands
1 Jan 2025
High1 Jan 2025
PowerSchool Holdings Inc.
Education · Records not stated
Student and teacher data breached in education software provider incident
1 Jan 2025
High1 Jan 2025
KT Corp
Technology · Records not stated
South Korea telecom giant hit with substantial fine for data breach by Personal Information Protection Commission
1 Jan 2025
High1 Jan 2025
Tribeca Film Festival
Sector not stated · 666,000 records
Unprotected database exposed 666,000 records with celebrity contact information, no encryption
1 Jan 2025
High1 Jan 2025
KT Corporation
Technology · Records not stated
Customer data breach; South Korea fined telco $39 million for exposure
1 Jan 2025
Critical1 Jan 2025
Network breach
Healthcare · 1,260,000 records
Network breach exposed sensitive healthcare billing data affecting 1.26 million people
1 Jan 2025
Critical1 Jan 2025
Conduent Business Services
Sector not stated · 62,200,000 records
Data breach affected more than 62.2 million individuals
1 Jan 2025
Medium28 Dec 2024
85K student records exposed via PowerSchool
Education · Records not stated
85K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
180K student records exposed via PowerSchool
Education · Records not stated
180K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
90K student records exposed via PowerSchool
Education · Records not stated
90K student records exposed via PowerSchool
28 Dec 2024
Medium28 Dec 2024
98K student records exposed via PowerSchool
Education · Records not stated
98K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
160K student records exposed via PowerSchool
Education · Records not stated
160K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
180K student records exposed via PowerSchool
Education · Records not stated
180K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
130K student records exposed via PowerSchool
Education · Records not stated
130K student records exposed via PowerSchool
28 Dec 2024
High28 Dec 2024
270K student records exposed via PowerSchool
Education · Records not stated
270K student records exposed via PowerSchool
28 Dec 2024
Were you affected?