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
140
Added in October
19
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 29 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. 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
Critical5 Oct 2024
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Chinese hackers accessed US lawful intercept systems at major carriers
5 Oct 2024
Critical5 Oct 2024
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Chinese hackers accessed US lawful intercept systems at major carriers
5 Oct 2024
Medium5 Oct 2024
Switch
Technology · 5,397 records
5,397 records exposed, Email addresses, Job applications, Names, Social media profiles
5 Oct 2024
Medium5 Oct 2024
Ally Financial
Finance · 42,000 records
42K customer records exposed
5 Oct 2024
High5 Oct 2024
Casio
Sector not stated · 700,000 records
700K user records exposed in ransomware attack
5 Oct 2024
Critical5 Oct 2024
Verizon (Salt Typhoon)
Technology · Records not stated
Chinese hackers accessed wiretap request data at Verizon
5 Oct 2024
Critical5 Oct 2024
T-Mobile (Salt Typhoon)
Technology · Records not stated
Chinese Salt Typhoon hackers accessed customer wiretap data at carrier
5 Oct 2024
Critical5 Oct 2024
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Chinese hackers accessed US lawful intercept systems at major carriers
5 Oct 2024
Critical3 Oct 2024
American Water Works
Sector not stated · Records not stated
Largest US water utility disconnected systems after cyberattack
3 Oct 2024
Medium3 Oct 2024
Fidelity Investments (Oct)
Finance · Records not stated
28K additional customer records exposed in second incident
3 Oct 2024
Critical1 Oct 2024
Japan Aerospace Agency
Government · Records not stated
October data breach leveraging VPN and Microsoft 365 security holes; attributed to Chinese state actors
1 Oct 2024
High1 Oct 2024
Japan Aerospace Agency
Government · Records not stated
Data breach leveraging VPN and Microsoft 365 security holes, attributed to Chinese state actors
1 Oct 2024
Critical1 Oct 2024
Hot Topic
Retail · 350,000,000 records
350 million customers' personal and payment data exposed due to infostealer infection
1 Oct 2024
Critical1 Oct 2024
Organisation not named
Technology · 24,000,000 records
The disclosure as indexed does not name the organisation.
GDPR breach in October 2024 compromising 24 million individuals' personal and financial data; €42M fine
1 Oct 2024
Critical1 Oct 2024
Hot Topic
Retail · 350,000,000 records
350 million customers' personal and payment data exposed via infostealer malware infection
1 Oct 2024
Critical1 Oct 2024
Organisation not named
Finance · 24,000,000 records
The disclosure as indexed does not name the organisation.
October 2024 breach compromised personal data of over 24 million individuals including sensitive financial information; €42 million fine
1 Oct 2024
Critical1 Oct 2024
Hot Topic
Retail · 350,000,000 records
Infostealer infection exposed personal and payment data of 350 million customers
1 Oct 2024
Critical1 Oct 2024
Japan Aerospace Agency
Government · Records not stated
October data breach leveraging VPN and Microsoft 365 security holes, attributed to Chinese state actors
1 Oct 2024
Critical1 Oct 2024
Organisation not named
Technology · 24,000,000 records
The disclosure as indexed does not name the organisation.
GDPR breach in October 2024 compromised personal data of over 24 million individuals including financial data; fined €42 million
1 Oct 2024
Critical1 Oct 2024
Hot Topic
Retail · 350,000,000 records
350 million customers' personal and payment data exposed via infostealer infection
1 Oct 2024
Critical1 Oct 2024
French Telecom Company
Technology · 24,000,000 records
GDPR breach compromised personal data of over 24 million individuals including sensitive financial information due to lack of basic security controls
1 Oct 2024
Critical1 Oct 2024
French Telecoms (unnamed subsidiaries)
Technology · 24,000,000 records
GDPR violations including lack of basic security controls; 24M customer records compromised with personal and financial data exposed
1 Oct 2024
Critical1 Oct 2024
Fortinet
Technology · Records not stated
FortiBleed campaign exposed valid admin and VPN credentials for 73,932 FortiGate firewalls
1 Oct 2024
Critical1 Oct 2024
French Telco Subsidiaries
Finance · 24,000,000 records
24 million individuals' personal and financial data compromised in October 2024 breach; €42 million fine
1 Oct 2024
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