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.

5,609
Disclosures in the tracker, all years
2,123
Of those, indexed in 2026
45
Added in November
45
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 7 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
High1 Mar 2026
Lehigh Carbon Community College
Education · Records not stated
Data breach caused extended school closure, extent undetermined
1 Mar 2026
High1 Mar 2026
CommonSpirit Health
Healthcare · 19,027 records
Data breach exposed medical and personal data of 19,027 patients
1 Mar 2026
Critical1 Mar 2026
TriZetto Provider Solutions
Healthcare · 3,400,000 records
Year-long unauthorized access to IT environment exposed PHI of 3.4 million individuals
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from medical research project exposed online multiple times
1 Mar 2026
Critical1 Mar 2026
UK Biobank
Healthcare · Records not stated
Confidential health records from flagship medical research project exposed online, with data leaked multiple times
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · 500,000 records
Confidential health records from medical research project exposed online; 500K+ records
1 Mar 2026
Critical1 Mar 2026
UK Biobank
Healthcare · Records not stated
Confidential health records from medical research project exposed online multiple times
1 Mar 2026
High1 Mar 2026
Loblaw
Retail · Records not stated
Data breach affecting Canadian customers of Loblaw-owned stores
1 Mar 2026
High1 Mar 2026
CareCloud
Healthcare · Records not stated
Electronic health records of patients leaked after hackers accessed healthcare software systems
1 Mar 2026
Critical1 Mar 2026
LexisNexis
Legal · 400,000 records
400K users exposed including federal judges and .gov accounts via cloud system breach
1 Mar 2026
High1 Mar 2026
Lehigh Carbon Community College
Education · Records not stated
Data breach prompted school closure; extent of breach not fully disclosed
1 Mar 2026
High1 Mar 2026
CommonSpirit Health
Healthcare · 19,027 records
Healthcare consulting company data breach exposed 19,027 patient records and medical information
1 Mar 2026
High1 Mar 2026
DGFiP (French tax authority)
Government · 678,000 records
678,000 people and businesses affected, compromised credentials exposed tax and business info
1 Mar 2026
Critical1 Mar 2026
RingCentral
Technology · 1,600,000 records
1.6 million customer records exposed in data leak
1 Mar 2026
Critical1 Mar 2026
IDMerit
Technology · Records not stated
1 billion identity records exposed due to unprotected database
1 Mar 2026
Critical1 Mar 2026
TriZetto
Healthcare · 3,400,000 records
Year-long hack exposed records on 3.4 million people
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from flagship medical research project exposed online multiple times
1 Mar 2026
Critical1 Mar 2026
UK BioBank
Healthcare · Records not stated
Confidential health records from medical research project exposed online
1 Mar 2026
Critical1 Mar 2026
UnitedHealthcare
Healthcare · Records not stated
One of the largest healthcare data breaches in American history involving multiple companies
1 Mar 2026
Critical1 Mar 2026
LiteLLM
Technology · Records not stated
Supply chain attack exposed over 430,000 CI/CD pipelines affecting over 2,500 organizations
1 Mar 2026
Critical1 Mar 2026
Conduent
Sector not stated · Records not stated
Breach compromised personal data of millions nationwide, notifications sent a year later
1 Mar 2026
Critical1 Mar 2026
Organisation not named
Healthcare · 1,200,000 records
The disclosure as indexed does not name the organisation.
Ransomware attack exposing personal data of 1.2 million individuals
1 Mar 2026
Critical1 Mar 2026
GuardDog
Healthcare · Records not stated
Telehealth company accessed and shared patient medical records from Epic platform with law firms without authorization
1 Mar 2026
Critical1 Mar 2026
CISA (US Agency)
Government · Records not stated
Breached through Cisco vulnerability, FIRESTARTER backdoor allowed persistent access through March
1 Mar 2026
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