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.

5,405
Disclosures in the tracker, all years
2,119
Of those, indexed in 2026
42
Added in November
43
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 6 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.

77 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 States5 Nov 2026Xplicit Audio LLCThe source does not say how they got in.Vermont Attorney General
  2. United States5 Nov 2026Killingly Public Schools (KPS)The source does not say how they got in.Vermont Attorney General
  3. United States4 Nov 2026DreamHostHow they got in: a known flaw in software the victim ran.BleepingComputer
  4. United States4 Nov 2026The Town of LincolnThe source does not say how they got in.Vermont Attorney General
  5. United States4 Nov 2026Vanguard Group, Inc.The source does not say how they got in.Vermont Attorney General
  6. United States4 Nov 2026Byker & Associates, Inc.The source does not say how they got in.Vermont Attorney General
  7. United States4 Nov 2026RevSpring, Inc.The source does not say how they got in.California Attorney General
  8. United States4 Nov 2026Hoag Memorial Hospital PresbyterianThe source does not say how they got in.California Attorney General
  9. United States4 Nov 2026New Century Ophthamology P.C.The source does not say how they got in.Vermont Attorney General
  10. United States4 Nov 2026Alation Inc.The source does not say how they got in.Vermont Attorney General
  11. United States3 Nov 2026WorkOSThe source does not say how they got in.BleepingComputer (via SecOpsNews feed)
  12. United States3 Nov 2026Cognitive Health Technologies (New York)The source does not say how they got in.HIPAA Journal
Critical1 May 2026
Foxconn
Technology · Records not stated
Ransomware attack on North American facilities with claims of stolen Apple and Nvidia data, 8TB stolen
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Data extortion attack on education technology platform disrupting schools and colleges nationwide
1 May 2026
Critical1 May 2026
DentaQuest
Healthcare · 15,000,000 records
15M patients impacted in largest healthcare data breach of 2026; May 2026 incident
1 May 2026
Critical1 May 2026
Canvas (Instructure)
Education · 275,000,000 records
ShinyHunters breached educational platform; 275M records exposed affecting schools nationwide
1 May 2026
Critical1 May 2026
Canvas
Education · 275,000,000 records
ShinyHunters breach exposed 275 million records from educational platform affecting schools nationwide
1 May 2026
Critical1 May 2026
NYC Health + Hospitals
Healthcare · 1,800,000 records
Hackers stole biometric data including fingerprints and medical data from 1.8 million people. Network access lasted over 2 months before detection.
1 May 2026
Critical1 May 2026
Queensland schools (education technology)
Education · Records not stated
Tens of thousands of Queensland students and teachers affected in major global education technology data breach
1 May 2026
High1 May 2026
Iliad Italia
Technology · Records not stated
Customer records, device registration, and subscription data offered for sale on dark web
1 May 2026
High1 May 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
NHS staff inappropriately accessed medical records of Southport attack victims; breach not disclosed for nearly two years
1 May 2026
Critical1 May 2026
ANC (African National Congress)
Sector not stated · Records not stated
Hacker group exposed 2 million private member records for sale
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Data extortion attack on education technology platform affecting schools and colleges
1 May 2026
Critical1 May 2026
DentaQuest
Healthcare · Records not stated
Largest healthcare data breach of 2026 impacted 15 million dental patients
1 May 2026
Critical1 May 2026
Instructure (Canvas)
Education · 275,000,000 records
Data breach exposed 275 million records from educational platform affecting schools nationwide
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Education technology platform disrupted by data extortion attack affecting schools and colleges
1 May 2026
Critical1 May 2026
Queensland schools
Education · Records not stated
Tens of thousands of Queensland students and teachers data exposed in major education technology breach
1 May 2026
Critical1 May 2026
NYC Health + Hospitals
Healthcare · 1,800,000 records
Hackers stole medical data, fingerprints and personal information affecting 1.8 million people
1 May 2026
High1 May 2026
Atrium Health Navicent
Healthcare · Records not stated
Patient records system breach potentially exposed personal and medical data
1 May 2026
Critical1 May 2026
African National Congress (ANC)
Sector not stated · Records not stated
2M private member records exposed and sold by hacker group
1 May 2026
High1 May 2026
Canvas (Learning Management System)
Education · Records not stated
Data extortion attack targeting education platform disrupted schools and colleges nationwide
1 May 2026
High1 May 2026
Canvas
Education · Records not stated
Data extortion attack on education technology platform affecting schools and colleges nationwide
1 May 2026
High1 May 2026
Iliad Italia
Technology · Records not stated
Customer records, device registration, subscription data offered on dark web
1 May 2026
High1 May 2026
Wiley Rein
Legal · Records not stated
Law firm breach exposed sensitive personal data, linked to Chinese hackers
1 May 2026
High1 May 2026
Atrium Health Navicent
Healthcare · Records not stated
Patient records system experienced data breach potentially exposing patients' records and personal information
1 May 2026
Critical1 May 2026
Foxconn
Technology · Records not stated
Ransomware group stole approximately 8 terabytes of data from North American facilities
1 May 2026
Were you affected?