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.

5,493
Disclosures in the tracker, all years
2,081
Of those, indexed in 2026
144
Added in October
21
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 30 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
High20 Apr 2022
Georgia Bureau of Investigation
Government · Records not stated
250K criminal justice records exposed in data breach
20 Apr 2022
Critical20 Apr 2022
1.24M patient records exposed in Tenet Healthcare breach
Healthcare · 1,240,000 records
1.24M patient records exposed in Tenet Healthcare breach
20 Apr 2022
Critical20 Apr 2022
Tenet Healthcare
Healthcare · 1,240,000 records
1.24M patient records across multiple hospitals exposed
20 Apr 2022
High18 Apr 2022
Sunwing Airlines
Sector not stated · Records not stated
Cyberattack caused multi-day flight delays, passenger data and crew scheduling compromised
18 Apr 2022
Critical17 Apr 2022
Costa Rica Government (Conti)
Government · Records not stated
Conti ransomware crippled 27 government agencies, state of emergency declared
17 Apr 2022
Critical17 Apr 2022
Costa Rica government
Sector not stated · Records not stated
Conti ransomware caused national emergency declaration
17 Apr 2022
Critical15 Apr 2022
Avvo
Education · 4,101,101 records
4,101,101 records exposed, Email addresses, Passwords
15 Apr 2022
Medium15 Apr 2022
Vertex Anesthesia
Healthcare · 46,000 records
46K patient records exposed
15 Apr 2022
High15 Apr 2022
Heroku / Salesforce
Technology · 576,000 records
OAuth token theft affected multiple customer repositories
15 Apr 2022
High15 Apr 2022
GitHub (2022)
Technology · Records not stated
OAuth tokens stolen from Heroku and Travis CI integrations
15 Apr 2022
High15 Apr 2022
Lumen Technologies
Sector not stated · 800,000 records
800K customer records exposed in data breach
15 Apr 2022
Medium14 Apr 2022
Quito Metro (Ecuador)
Government · Records not stated
Ransomware attacked Ecuador's Quito metro transit system
14 Apr 2022
High11 Apr 2022
Deutsche Windtechnik (Germany)
Sector not stated · Records not stated
Cyberattack shut down remote monitoring of 2,000 wind turbines
11 Apr 2022
High10 Apr 2022
Oil India Limited
Sector not stated · Records not stated
Ransomware attack on state-owned oil company, $7.5M ransom demanded
10 Apr 2022
Medium9 Apr 2022
Weslaco ISD (TX)
Education · Records not stated
12K student records exposed
9 Apr 2022
High8 Apr 2022
Travelio
Government · 471,376 records
471,376 records exposed, Auth tokens, Dates of birth, Email addresses, Names and 3 more
8 Apr 2022
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