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.

Worldwide · How they got in

Incidents worldwide, by country.

78 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
High1 Jan 2026
KT Corp
Technology · Records not stated
Data breach resulting in significant fine from South Korea's Personal Information Protection Commission
1 Jan 2026
High1 Jan 2026
FirstClass
Retail · Records not stated
Australian travel agency - customer records allegedly breached, threat actor posted on underground forums.
1 Jan 2026
High1 Jan 2026
Yearslong data breach of residents' private health-related information
Government · Records not stated
Yearslong data breach of residents' private health-related information
1 Jan 2026
High1 Jan 2026
Xsolis
Healthcare · Records not stated
Healthcare AI vendor breach in January 2026 exposed patient records from client healthcare organizations
1 Jan 2026
High27 Dec 2025
WIRED
Technology · 2,364,431 records
2,364,431 records exposed, Dates of birth, Display names, Email addresses, Genders and 4 more
27 Dec 2025
High26 Dec 2025
Utair
Government · 401,400 records
401,400 records exposed, Dates of birth, Email addresses, Genders, Loyalty program details and 4 more
26 Dec 2025
Critical24 Dec 2025
Медицинская лаборатория Гемотест (Gemotest)
Healthcare · 6,341,495 records
6,341,495 records exposed, Dates of birth, Email addresses, Genders, Government issued IDs and 4 more
24 Dec 2025
High18 Dec 2025
The Botting Network
Technology · 96,320 records
96,320 records exposed, Dates of birth, Email addresses, Passwords, Usernames
18 Dec 2025
Medium18 Dec 2025
AUTOSUR
Technology · 487,226 records
487,226 records exposed, Email addresses, Names, Phone numbers, Physical addresses and 3 more
18 Dec 2025
High17 Dec 2025
Web Hosting Talk
Technology · 515,149 records
515,149 records exposed, Email addresses, IP addresses, Passwords, Usernames
17 Dec 2025
High6 Dec 2025
KinoKong
Technology · 817,808 records
817,808 records exposed, Email addresses, IP addresses, Names, Passwords and 1 more
6 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Tech provider confirms data breach
1 Dec 2025
High1 Dec 2025
Mixpanel
Technology · Records not stated
Data breach at analytics platform
1 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Confirmed data breach at technology provider
1 Dec 2025
Critical1 Dec 2025
Conduent
Healthcare · 62,200,000 records
62.2 million people affected in healthcare data breach, third-largest US healthcare hack ever
1 Dec 2025
High1 Dec 2025
NHS England Tech Provider
Healthcare · 900,000 records
Tech provider confirmed data breach affecting NHS England
1 Dec 2025
Medium1 Dec 2025
Organisation not named
Healthcare · 4,000 records
The disclosure as indexed does not name the organisation.
Unauthorized access to behavioral healthcare provider data affecting approximately 4,000 individuals
1 Dec 2025
High1 Dec 2025
NHS England tech provider
Healthcare · 900,000 records
Tech provider for NHS England confirms data breach
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach affecting Horizon IT scandal victims; resulted in ICO reprimand for entirely preventable breach
1 Dec 2025
High1 Dec 2025
Petco
Retail · Records not stated
Data breach exposed personal data of customers including names and date of birth across several states
1 Dec 2025
High1 Dec 2025
Rain Bird Corporation
Sector not stated · 24,862 records
Data breach exposed financial information of 24,862 customers on December 11, 2025
1 Dec 2025
High1 Dec 2025
Detroit-based behavioral healthcare provider experienced security incident with
Healthcare · 4,000 records
Detroit-based behavioral healthcare provider experienced security incident with unauthorized access; ~4,000 records impacted
1 Dec 2025
High1 Dec 2025
Leroy Merlin
Retail · Records not stated
Loyalty program data breach affecting customers' personal information
1 Dec 2025
High1 Dec 2025
Post Office Limited
Government · Records not stated
Data breach affecting Horizon IT scandal victims with customer information exposed
1 Dec 2025
Were you affected?