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.

5,337
Disclosures in the tracker, all years
2,050
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 24 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 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. Canada23 Oct 2026Crime Stoppers programs in OntarioHow they got in: a supplier or vendor that was compromised first.Global News
  2. Canada22 Oct 2026Toronto Crime StoppersHow they got in: a supplier or vendor that was compromised first.Global News
  3. Canada21 Oct 2026Canadian Crime Stoppers AssociationHow they got in: a supplier or vendor that was compromised first.CBC News
  4. Canada17 Oct 2026More RewardsThe source does not say how they got in.CTV News
  5. Canada16 Oct 2026McMurray MétisHow they got in: email made to look like it came from a trusted sender.Yahoo News Canada
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
High6 Jan 2026
WhiteDate
Education · 20,363 records
20,363 records exposed, Ages, Astrological signs, Bios, Device information and 18 more
6 Jan 2026
High1 Jan 2026
Yearslong breach of residents' private health-related information
Healthcare · Records not stated
Yearslong breach of residents' private health-related information
1 Jan 2026
Critical1 Jan 2026
Armenian Government
Government · Records not stated
Alleged sale of 8 million government records on hacker forum
1 Jan 2026
Critical1 Jan 2026
Betterment
Finance · 1,400,000 records
Personal details of 1.4 million customers exposed after threat actors exploited vulnerabilities starting January 9, 2026
1 Jan 2026
Critical1 Jan 2026
CenterPoint Energy
Sector not stated · 7,490,000 records
Confirmed data breach with 7.49 million customer records stolen by hacker
1 Jan 2026
Critical1 Jan 2026
Betterment
Finance · 1,400,000 records
Financial services platform breach exposed personal details of 1.4 million customers after exploitation of human vulnerabilities
1 Jan 2026
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