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 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. Japan29 Oct 2026Japan AirlinesHow they got in: a supplier or vendor that was compromised first.BleepingComputer
  2. Japan29 Oct 2026Sony Network Communications (So-net / Plala ISP)The source does not say how they got in.SecurityWeek
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
Medium7 Mar 2023
Oklahoma Heart Hospital (2023)
Healthcare · 45,000 records
45K patient records exposed
7 Mar 2023
Medium7 Mar 2023
4,500 staff records exposed in data breach
Education · Records not stated
4,500 staff records exposed in data breach
7 Mar 2023
High7 Mar 2023
City of Modesto CA
Government · 340,000 records
340K records exposed in cyberattack
7 Mar 2023
Critical6 Mar 2023
Ransom House / Barcelona Hospital
Healthcare · Records not stated
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Medium6 Mar 2023
DC Health Link / US Congress
Government · 56,000 records
56K records including Congressional staff health plan data leaked
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
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