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.

5,491
Disclosures in the tracker, all years
2,079
Of those, indexed in 2026
141
Added in October
18
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.

76 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
Critical1 Feb 2026
Unknown Cloud Database
Sector not stated · 3,000,000,000 records
Misconfigured database leaked 3 billion records including SSNs and passwords
1 Feb 2026
High1 Feb 2026
Tribeca Film Festival
Sector not stated · 666,000 records
Unprotected database exposed 666,000 records of Hollywood actors and directors with contact data, no encryption
1 Feb 2026
Critical1 Feb 2026
Mexican Government (Nine Agencies)
Government · Records not stated
Hacker exploited AI tools (Claude Code and OpenAI) to compromise nine federal agencies, affecting millions of records
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, surgeries canceled, clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network; surgeries canceled and clinics closed
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, canceled surgeries and closed clinics
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack shut down computer network, forced surgery cancellations and clinic closures
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, forcing surgery cancellations and clinic closures
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack brought down computer network, forced surgery cancellations and clinic closures
1 Feb 2026
High1 Feb 2026
Ransomware attack
Education · Records not stated
Ransomware attack exposed data from Multiethnic Cohort Study including driver's license numbers and voter information
1 Feb 2026
High1 Feb 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack disrupted hospital network; surgeries canceled and clinics closed
1 Feb 2026
Critical1 Feb 2026
Unknown cloud database
Sector not stated · 3,000,000,000 records
Misconfigured database exposed 3 billion records including SSNs and plaintext passwords
1 Feb 2026
Critical1 Feb 2026
Mexican Government Agencies
Government · Records not stated
Single hacker exploited Claude Code and OpenAI's ChatGPT to breach 9 federal agencies; millions of records stolen
1 Feb 2026
High1 Feb 2026
Canada Goose
Retail · Records not stated
600,000+ customer transaction records leaked by ShinyHunters via third-party payment processor
1 Feb 2026
Critical1 Feb 2026
Mexican Government
Government · Records not stated
Hacker exploited AI tools to breach 9 federal agencies, millions of records stolen
1 Feb 2026
High1 Feb 2026
University of Pennsylvania
Education · Records not stated
ShinyHunters leaked confidential files including donor records and internal documents
1 Feb 2026
Critical1 Feb 2026
Conduent
Government · 25,000,000 records
Ransomware attack on government contractor exposed at least 25 million records
1 Feb 2026
High31 Jan 2026
Panera Bread
Technology · 5,112,502 records
5,112,502 records exposed, Email addresses, Names, Phone numbers, Physical addresses
31 Jan 2026
Critical27 Jan 2026
SoundCloud
Technology · 29,815,722 records
29,815,722 records exposed, Avatars, Email addresses, Geographic locations, Names and 2 more
27 Jan 2026
Critical21 Jan 2026
Under Armour
Technology · 72,742,892 records
72,742,892 records exposed, Dates of birth, Email addresses, Genders, Geographic locations and 2 more
21 Jan 2026
Critical19 Jan 2026
Raaga
Retail · 10,225,145 records
10,225,145 records exposed, Ages, Dates of birth, Email addresses, Genders and 3 more
19 Jan 2026
High18 Jan 2026
Pass'Sport
Government · 6,366,133 records
6,366,133 records exposed, Email addresses, Genders, Names, Phone numbers and 1 more
18 Jan 2026
High11 Jan 2026
Instagram
Technology · 6,215,150 records
6,215,150 records exposed, Display names, Email addresses, Geographic locations, Phone numbers and 1 more
11 Jan 2026
High10 Jan 2026
BreachForums (2025)
Technology · 672,247 records
672,247 records exposed, Email addresses, Forum posts, Passwords, Private messages and 1 more
10 Jan 2026
Were you affected?