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.

5,339
Disclosures in the tracker, all years
2,052
Of those, indexed in 2026
111
Added in October
26
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. France20 Oct 2026US tax preparation businessesThe source does not say how they got in.The Record
Critical1 Jun 2026
Baylor Genetics
Healthcare · 2,800,000 records
2.8 million patients affected; exposed medical conditions, SSNs, and employee information
1 Jun 2026
Critical1 Jun 2026
Charter Communications
Technology · 42,000,000 records
Data breach confirmed; ShinyHunters extortion group threatened release of customer data; 42 million records
1 Jun 2026
Critical1 Jun 2026
McKesson
Healthcare · 284,000,000 records
Data breach confirmed; ShinyHunters claimed theft of 284 million records including PII and PHI
1 Jun 2026
Critical1 Jun 2026
Odido
Sector not stated · 6,500,000 records
ShinyHunters stole 6.5M customer records; €1M ransom demanded
1 Jun 2026
Critical1 Jun 2026
Aflac Japan
Finance · 1,300,000 records
Exposed 4.38 million customers; second major breach in over a year
1 Jun 2026
High1 Jun 2026
FirstClass
Sector not stated · Records not stated
Customer records breached; Sydney-based travel agency data allegedly stolen and posted on underground hacking forums
1 Jun 2026
Critical1 Jun 2026
Canada Life
Finance · 5,500,000 records
5.5 million records allegedly exposed including customer, employee, and corporate data
1 Jun 2026
High1 Jun 2026
Lands' End
Retail · Records not stated
Data breach impacting customer records; settlement reached with eligible customers receiving $5K
1 Jun 2026
High1 Jun 2026
University of Western Australia
Education · Records not stated
Second data breach in six months; accidental leak of student records
1 Jun 2026
High1 Jun 2026
US Bank
Finance · Records not stated
Investigating data breach following LockBit ransomware claim threatening to publish stolen data
1 Jun 2026
High1 Jun 2026
Huntsville Hospital
Healthcare · Records not stated
Patient health information compromised via third-party vendor breach
1 Jun 2026
High1 Jun 2026
Essex NHS Trust
Healthcare · 900,000 records
Patient records stolen in cyber attack; disclosure delayed over six months
1 Jun 2026
High1 Jun 2026
Fortinet
Technology · Records not stated
74,000 firewall and VPN gateway credentials stolen from configuration files
1 Jun 2026
High1 Jun 2026
Fairlife (Coca-Cola subsidiary)
Retail · Records not stated
Ransomware attack resulted in theft of company data from dairy subsidiary
1 Jun 2026
High1 Jun 2026
Partnered Health
Healthcare · Records not stated
Australian GP network breach exposed patient records on dark web
1 Jun 2026
High1 Jun 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party breach exposed patient information at hospital facilities
1 Jun 2026
High1 Jun 2026
LastPass
Technology · Records not stated
Third-party vendor breach exposed customer data
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Personal information of 3 million Texans exposed by cyber attack
1 Jun 2026
Critical1 Jun 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Personal information of 3 million Texans exposed in cyber attack
1 Jun 2026
Critical1 Jun 2026
Fortinet FortiGate
Technology · Records not stated
Dataset containing valid administrative and VPN credentials for 73,932 FortiGate firewalls exposed
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed: Verified administrator credentials for 73,000+ VPN devices exposed globally
1 Jun 2026
Critical1 Jun 2026
Charter Communications
Technology · 42,000,000 records
Data breach exposing 42 million customer records to extortion group ShinyHunters
1 Jun 2026
Medium1 Jun 2026
DC Housing Authority
Government · Records not stated
Cybersecurity incident with limited sensitive information compromised
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified admin credentials for 73,932 FortiGate systems
1 Jun 2026
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