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.

5,324
Disclosures in the tracker, all years
2,038
Of those, indexed in 2026
86
Added in October
20
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 22 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.

72 incidents from 9 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. United Kingdom16 Oct 2026Southville Primary School (Bristol City Council area)The source does not say how they got in.Hits Radio (West of England)
  2. United Kingdom13 Oct 2026TFG LondonThe source does not say how they got in.BleepingComputer
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
4.38 million customer records stolen by hackers containing personal data
1 Jun 2026
High1 Jun 2026
Lands' End
Retail · Records not stated
Customer data breach settled for $5,000 per affected individual
1 Jun 2026
High1 Jun 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Patient data compromised in third-party vendor breach, affecting multiple hospital facilities
1 Jun 2026
High1 Jun 2026
Bedfordshire Hospital
Healthcare · Records not stated
Patient names, NHS numbers and test results exposed in cyber attack affecting hospital patients
1 Jun 2026
High1 Jun 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in cyber attack, disclosed over six months after notification
1 Jun 2026
High1 Jun 2026
Veradigm
Healthcare · Records not stated
Electronic health records company confirms customer data stolen after hackers infiltrated vendor systems
1 Jun 2026
Critical1 Jun 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach affected 1.2 million individuals
1 Jun 2026
Critical1 Jun 2026
Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed sensitive protected health data on 1.3 million people
1 Jun 2026
Critical1 Jun 2026
Odido
Technology · 6,500,000 records
ShinyHunters stole 6.5 million customer records, €1M ransom demanded
1 Jun 2026
High1 Jun 2026
FirstClass
Retail · Records not stated
Australian travel agency data breach with customer records compromised by threat actor
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified admin credentials and VPN access for 73,932 FortiGate systems
1 Jun 2026
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
Were you affected?