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.

5,352
Disclosures in the tracker, all years
2,066
Of those, indexed in 2026
125
Added in October
17
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 27 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 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 States26 Oct 2026Monmouth UniversityThe source does not say how they got in.Vermont Attorney General
  2. United States26 Oct 2026Denver Health Medical PlanThe source does not say how they got in.HIPAA Journal
  3. United States24 Oct 2026Brooklyn Counseling ServicesThe source does not say how they got in.Vermont Attorney General
  4. United States24 Oct 2026Northeastern Mental Health CenterThe source does not say how they got in.Vermont Attorney General
  5. United States23 Oct 2026Industrial and healthcare organizationsHow they got in: a known flaw in software the victim ran.The Hacker News
  6. United States23 Oct 2026RL Schreiber, Inc.The source does not say how they got in.Vermont Attorney General
  7. United States23 Oct 2026Ford Audio-Video Systems, LLCThe source does not say how they got in.Vermont Attorney General
  8. United States23 Oct 2026EyeMed Vision Care, LLCThe source does not say how they got in.Vermont Attorney General
  9. United States23 Oct 2026Alabama Fire CollegeThe source does not say how they got in.Vermont Attorney General
  10. United States23 Oct 2026UltraMobile ImagingThe source does not say how they got in.HIPAA Journal
  11. United States23 Oct 2026Washington GastroenterologyThe source does not say how they got in.HIPAA Journal
  12. United States23 Oct 2026Tarter Krinsky & DroginThe source does not say how they got in.HIPAA Journal
Critical1 Jan 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Inadvertent exposure of personal information for over 700,000 state residents
1 Jan 2026
Critical1 Jan 2026
Canada Life
Finance · 5,500,000 records
Threat actor claims 5.5 million customer, employee, and corporate records exposed for sale
1 Jan 2026
Critical1 Jan 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Inadvertent exposure of personal information belonging to over 700,000 state residents
1 Jan 2026
High1 Jan 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Cyberattacks on operational technology across water systems in South Dakota, Georgia and 10 other states
1 Jan 2026
High1 Jan 2026
North Carolina Ports Authority
Sector not stated · Records not stated
Port of Wilmington cyberattack disrupted IT systems and operations
1 Jan 2026
Critical1 Jan 2026
Unlimited Technology Systems
Healthcare · 3,800,000 records
3.8 million people impacted by data breach at healthcare software company
1 Jan 2026
High1 Jan 2026
Exact Sciences/Abbott
Healthcare · Records not stated
Sensitive personal health information exposed from at-home diagnostic tests
1 Jan 2026
High1 Jan 2026
Law firm (New Jersey)
Legal · 13,000 records
Cyberattack exposed hospital records and personal data of approximately 13,000 patients
1 Jan 2026
Critical1 Jan 2026
MCBS Medical
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack on medical billing/practice-management system
1 Jan 2026
Critical1 Jan 2026
Instructure Canvas
Education · Records not stated
Supply chain breach generating 58% of all breach notices in 2026
1 Jan 2026
Critical1 Jan 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Classified networks compromised via China-made malware USB drives; breach undetected for nearly a year
1 Jan 2026
High1 Jan 2026
TrueConf
Technology · Records not stated
Client installers compromised with backdoors after server breach by Head Mare group
1 Jan 2026
High1 Jan 2026
Unnamed Law Firm
Legal · 13,000 records
Law firm breach exposed hospital patient records for approximately 13,000 patients in New Jersey
1 Jan 2026
High1 Jan 2026
Oregon DEQ
Government · Records not stated
Department of Environmental Quality leaked thousands of people's personal information
1 Jan 2026
Critical1 Jan 2026
Coldcard
Technology · Records not stated
Hardware wallet data breach resulting in theft of over $100M worth of bitcoin
1 Jan 2026
High1 Jan 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack stole data; hackers confirmed deletion of stolen information
1 Jan 2026
High1 Jan 2026
Framework
Technology · Records not stated
Hackers stole customer names and personal information from computer maker
1 Jan 2026
High1 Jan 2026
Multi-year data breach of residents' health-related information
Government · Records not stated
Multi-year data breach of residents' health-related information
1 Jan 2026
High1 Jan 2026
Uzbekistan Government Agencies
Government · 60,000 records
Cyberattack on government agencies exposing 60,000 records
1 Jan 2026
Critical1 Jan 2026
Multiple Water Utilities
Government · Records not stated
Cyberattacks on operational technology across at least 12 US states; Iranian-linked campaign
1 Jan 2026
High1 Jan 2026
Quantum Health
Healthcare · Records not stated
Healthcare advocacy vendor breach exposed employees' Social Security numbers
1 Jan 2026
High1 Jan 2026
Yearslong breach exposing residents' private health-related information
Healthcare · Records not stated
Yearslong breach exposing residents' private health-related information
1 Jan 2026
High1 Jan 2026
Swiss Federal Government
Government · Records not stated
SharePoint server breach compromised 200 government accounts
1 Jan 2026
High1 Jan 2026
Personal information of thousands
Government · Records not stated
Personal information of thousands leaked; agency delayed public notification for months
1 Jan 2026
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