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.

5,583
Disclosures in the tracker, all years
2,083
Of those, indexed in 2026
147
Added in October
22
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 31 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.

77 incidents from 11 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 States30 Oct 2026The Krum Public LibraryThe source does not say how they got in.Vermont Attorney General
  2. United States30 Oct 2026Marathon HealthThe source does not say how they got in.Vermont Attorney General
  3. United States29 Oct 2026BRANDco., LLCThe source does not say how they got in.Vermont Attorney General
  4. United States29 Oct 2026Revolve Group, Inc.The source does not say how they got in.Vermont Attorney General
  5. United States29 Oct 2026The Research Foundation for Mental Health, Inc.The source does not say how they got in.Vermont Attorney General
  6. United States29 Oct 2026Del Monte Foods Corporation II Inc.The source does not say how they got in.California Attorney General
  7. United States29 Oct 2026Bangkok Bank PCL - New York BranchThe source does not say how they got in.California Attorney General
  8. United States29 Oct 2026IRhythm TechnologiesThe source does not say how they got in.SecurityWeek
  9. United States28 Oct 2026Blueberry PediatricsHow they got in: a known flaw in software the victim ran.HIPAA Journal
  10. United States28 Oct 2026CodeSecure Inc.The source does not say how they got in.Vermont Attorney General
  11. United States28 Oct 202611252227 Canada Inc.The source does not say how they got in.Vermont Attorney General
  12. United States28 Oct 2026Troutman Pepper Locke LLPThe source does not say how they got in.California Attorney General
Critical25 Mar 2022
MCG Health
Healthcare · 1,100,000 records
1.1M patient records exposed including SSNs
25 Mar 2022
High23 Mar 2022
Trenitalia (Italian Railways)
Sector not stated · Records not stated
Hive ransomware disrupted Italian train ticket systems nationwide
23 Mar 2022
High22 Mar 2022
Hellenic Post (ELTA Greece)
Government · Records not stated
Vice Society ransomware disrupted Greek postal services nationwide
22 Mar 2022
Critical22 Mar 2022
Microsoft (Lapsus$ Global Impact)
Technology · Records not stated
Lapsus$ stole 37GB of Bing, Cortana, and Bing Maps source code
22 Mar 2022
High22 Mar 2022
Ukrposhta (Ukraine Post)
Government · Records not stated
Cyberattack disrupted Ukrainian postal service amid ongoing conflict
22 Mar 2022
High22 Mar 2022
SAC Health System
Healthcare · 149,000 records
149K patient records exposed in ransomware
22 Mar 2022
Medium22 Mar 2022
City of Westmere NY
Government · 22,000 records
22K records exposed in data breach
22 Mar 2022
Critical22 Mar 2022
Microsoft (LAPSUS$)
Technology · Records not stated
37GB of source code including Bing and Cortana stolen
22 Mar 2022
High22 Mar 2022
Okta (2022)
Technology · Records not stated
LAPSUS$ breached via third-party vendor Sitel, 366 customer tenants affected
22 Mar 2022
High21 Mar 2022
Greek Posts (ELTA)
Government · Records not stated
Vice Society ransomware disrupted Greek postal service, all branches offline
21 Mar 2022
High19 Mar 2022
ZAP-Hosting
Technology · 746,682 records
746,682 records exposed, Browser user agent details, Chat logs, Email addresses, IP addresses and 4 more
19 Mar 2022
High19 Mar 2022
Partnership HealthPlan
Healthcare · 854,000 records
854K patient records exposed in Hive ransomware
19 Mar 2022
Critical18 Mar 2022
TransUnion
Finance · Records not stated
3M consumer credit records exposed in South Africa breach
18 Mar 2022
Medium17 Mar 2022
P&O Ferries (UK)
Sector not stated · Records not stated
Employee data compromised following mass redundancy, HR systems breached
17 Mar 2022
Critical17 Mar 2022
TransUnion South Africa
Finance · Records not stated
54M consumer records stolen by N4ughtySec, $15M ransom demanded
17 Mar 2022
High17 Mar 2022
Caisse Nationale d'Assurance Maladie
Healthcare · Records not stated
510,000 French health insurance records stolen through compromised pharmacist accounts
17 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
Medium16 Mar 2022
63K patient records exposed in email breach
Healthcare · 63,000 records
63K patient records exposed in email breach
16 Mar 2022
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