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.

5,365
Disclosures in the tracker, all years
2,079
Of those, indexed in 2026
138
Added in October
17
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 29 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.

76 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 States28 Oct 2026Legacy CooperativeThe source does not say how they got in.Vermont Attorney General
  2. United States28 Oct 2026Metro Tulsa Foot & Ankle SpecialistThe source does not say how they got in.Vermont Attorney General
  3. United States28 Oct 2026Quantum Health, Inc.The source does not say how they got in.Vermont Attorney General
  4. United States27 Oct 2026Directed Trust CompanyThe source does not say how they got in.Vermont Attorney General
  5. United States27 Oct 2026NorthShore Health CentersThe source does not say how they got in.HIPAA Journal
  6. United States27 Oct 2026University of New Mexico Health SystemThe source does not say how they got in.The Record
  7. United States26 Oct 2026Chisholm, Persson & Ball, P.C.The source does not say how they got in.Vermont Attorney General
  8. United States26 Oct 2026Alpha Omega Alpha Honor Medical SocietyThe source does not say how they got in.Vermont Attorney General
  9. United States26 Oct 2026USForex Inc.The source does not say how they got in.California Attorney General
  10. United States26 Oct 2026Monmouth UniversityThe source does not say how they got in.Vermont Attorney General
  11. United States26 Oct 2026Denver Health Medical PlanThe source does not say how they got in.HIPAA Journal
  12. United States24 Oct 2026Brooklyn Counseling ServicesThe source does not say how they got in.Vermont Attorney General
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High9 Nov 2021
135K patient records exposed
Healthcare · 135,000 records
135K patient records exposed
9 Nov 2021
High8 Nov 2021
MediaMarkt (Netherlands/Germany)
Retail · Records not stated
Hive ransomware disrupted 3,100 European electronics stores, $50M demanded
8 Nov 2021
Critical8 Nov 2021
DNA Diagnostics Center
Healthcare · 2,100,000 records
2.1M customer records and paternity test data exposed
8 Nov 2021
High5 Nov 2021
City of Westmount (QC)
Government · Records not stated
Municipal systems locked by ransomware
5 Nov 2021
Critical4 Nov 2021
CyberServe
Healthcare · 1,107,034 records
1,107,034 records exposed, Dates of birth, Drinking habits, Email addresses, Family structure and 15 more
4 Nov 2021
Medium4 Nov 2021
NorthStar HealthCare Group
Healthcare · 25,000 records
25K patient records exposed
4 Nov 2021
Critical3 Nov 2021
Robinhood
Finance · 7,000,000 records
7M customer accounts compromised in social engineering attack
3 Nov 2021
Medium2 Nov 2021
iFood (Brazil)
Technology · Records not stated
Employee tampered with 6M restaurant listings, names changed to political messages
2 Nov 2021
High2 Nov 2021
Tamil Nadu Police (India)
Government · Records not stated
60,000 police records including FIRs and accused details leaked online
2 Nov 2021
High1 Nov 2021
City of Quincy MA
Government · Records not stated
Ransomware disrupted city services
1 Nov 2021
Critical30 Oct 2021
Newfoundland Health (Eastern Health)
Healthcare · Records not stated
Cyberattack disrupted healthcare across entire province for weeks
30 Oct 2021
Critical30 Oct 2021
Government of Newfoundland Health
Healthcare · Records not stated
Cyberattack disrupted healthcare across entire province, years of patient data stolen
30 Oct 2021
Critical29 Oct 2021
CyberServe (Iran)
Technology · 1,000,000 records
1M user records exposed in hacktivist attack
29 Oct 2021
High26 Oct 2021
Schreiber Foods
Sector not stated · Records not stated
Ransomware shut down dairy plants across US
26 Oct 2021
Critical23 Oct 2021
Iran Atomic Energy Organization
Government · Records not stated
Hacktivist group leaked 50GB of nuclear facility documents and emails
23 Oct 2021
High22 Oct 2021
CoinMarketCap
Finance · 3,117,548 records
3,117,548 records exposed, Email addresses
22 Oct 2021
High22 Oct 2021
Norwood Clinic
Healthcare · 228,000 records
228K patient records exposed in ransomware
22 Oct 2021
High20 Oct 2021
DaVita
Healthcare · 300,000 records
300K patient dialysis records exposed in data breach
20 Oct 2021
High18 Oct 2021
SIAE (Italian Copyright Agency)
Sector not stated · Records not stated
Everest ransomware stole 60GB, musicians' personal and financial data published
18 Oct 2021
High18 Oct 2021
Texas ENT Specialists
Healthcare · 535,000 records
535K patient records exposed in ransomware
18 Oct 2021
High17 Oct 2021
Atento SA (Brazil)
Technology · Records not stated
LockBit ransomware disrupted call center operations, $42.1M estimated loss
17 Oct 2021
High17 Oct 2021
Sinclair Broadcast Group
Sector not stated · Records not stated
Evil Corp ransomware disrupted TV broadcasts across 185 stations
17 Oct 2021
High17 Oct 2021
Adaptive Health Integrations
Healthcare · 510,000 records
510K patient records exposed in hacking incident
17 Oct 2021
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