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
16
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 28 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.

74 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. Australia22 Oct 2026Campbelltown Anglican Schools CouncilThe source does not say how they got in.Cyber Daily
  2. Australia20 Oct 2026AOMEI TechnologyThe source does not say how they got in.SecurityWeek
  3. Australia19 Oct 2026Poole GroupThe source does not say how they got in.Accountants Daily
  4. Australia16 Oct 2026Chadwick SwitchboardsThe source does not say how they got in.Cyber Daily
Critical1 Apr 2026
Rockstar Games
Technology · Records not stated
ShinyHunters breached Rockstar Games through Anodot's compromised Snowflake access
1 Apr 2026
Critical1 Apr 2026
ANTS (French ID Agency)
Government · 19,000,000 records
19 million records exposed including personal identity data
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack, data security incident disclosed
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack, data security incident disclosed
1 Apr 2026
High1 Apr 2026
Nissan
Technology · Records not stated
Data breach via third-party vendor's file-transfer system compromised by hacking group
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach affected 46,666 patients, exposing personal and health information
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
April 2026 data breach; 8 class action lawsuits filed by September
1 Apr 2026
High1 Apr 2026
Organisation not named
Retail · Records not stated
The disclosure as indexed does not name the organisation.
April 2026 data breach facing 8 class action lawsuits
1 Apr 2026
High1 Apr 2026
Apple American Group (Applebee's)
Retail · Records not stated
April 2026 data breach affecting customers, resulted in eight class-action lawsuits
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website (Alibaba)
1 Apr 2026
High1 Apr 2026
Ryanair
Sector not stated · Records not stated
Breach exposing court documents, legal emails, flight data, and banking details; data claimed on hacker forums
1 Apr 2026
Critical1 Apr 2026
US Government Agency
Government · Records not stated
Unnamed federal department breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website Alibaba
1 Apr 2026
High1 Apr 2026
Nissan
Technology · Records not stated
Data stolen from third-party vendor's file-transfer system used by Nissan and Infiniti
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach exposed personal and health information of 46,666 patients
1 Apr 2026
Critical1 Apr 2026
ANTS (French ID Agency)
Government · 19,000,000 records
Cyberattack exposed 19 million records including personal data linked to identity documents
1 Apr 2026
High1 Apr 2026
Signature Healthcare Brockton Hospital
Healthcare · Records not stated
Ransomware cyberattack causing system downtime; clinics offline for two weeks
1 Apr 2026
Critical1 Apr 2026
ANTS (French ID Agency)
Government · 19,000,000 records
Cyberattack exposed 19M records including personal identity data
1 Apr 2026
Critical1 Apr 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee unlawfully accessed customer data over 2+ years; €31.8M fine
1 Apr 2026
High1 Apr 2026
Ryanair
Sector not stated · Records not stated
Court documents, flight data, and banking details exposed in hacker forum
1 Apr 2026
High1 Apr 2026
Nissan
Technology · Records not stated
Third-party vendor file-transfer system breach exposed data from services used by Nissan and Infiniti
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
46,666 patients' personal and health information exposed
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website
1 Apr 2026
Critical1 Apr 2026
Intesa Sanpaolo S.p.A.
Finance · Records not stated
Employee unlawfully accessed customer data over two years, €31.8M fine for breach transparency
1 Apr 2026
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