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, 23 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.

71 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. United States23 Oct 2026Tarter Krinsky & DroginThe source does not say how they got in.HIPAA Journal
  2. United States23 Oct 2026Quest DiagnosticsThe source does not say how they got in.SecurityWeek
  3. United States22 Oct 2026Summit School DistrictThe source does not say how they got in.Vermont Attorney General
  4. United States22 Oct 2026Nordace Limited d/b/a NordaceThe source does not say how they got in.Vermont Attorney General
  5. United States22 Oct 2026Deposition Solutions, LLC (d/b/a Lexitas)The source does not say how they got in.California Attorney General
  6. United States22 Oct 2026Opportune LLPThe source does not say how they got in.California Attorney General
  7. United States22 Oct 2026Transformative Healthcare, LLCThe source does not say how they got in.HIPAA Journal
  8. United States22 Oct 2026American Renal Management LLCThe source does not say how they got in.HIPAA Journal
  9. United States22 Oct 2026Ridgeway Pharmacy LtdHow they got in: a supplier or vendor that was compromised first.HIPAA Journal
  10. United States22 Oct 2026City of Columbia, South CarolinaThe source does not say how they got in.The Record
  11. United States22 Oct 2026RailwayThe source does not say how they got in.TechCrunch
  12. United States21 Oct 2026Critical infrastructure organizations worldwideHow they got in: stolen or reused passwords.BleepingComputer
Critical1 Jun 2026
Fortinet (FortiBleed campaign)
Technology · Records not stated
FortiBleed campaign exposed verified admin credentials and configuration data for more than 73,000 Fortinet VPN/firewall devices.
1 Jun 2026
High1 Jun 2026
iRhythm
Healthcare · Records not stated
Wearable cardiac monitoring company (Zio ECG) notifying individuals affected by a June 2026 hacking incident involving personal and health information.
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed: Over 73,932 FortiGate systems exposed with valid administrative and VPN credentials leaked
1 Jun 2026
High1 Jun 2026
LastPass
Technology · Records not stated
Security breach at third-party vendor exposed customer data belonging to LastPass
1 Jun 2026
Critical1 Jun 2026
iRhythm
Healthcare · 360,000 records
Medical device maker breach in June exposed data of at least 360,000 people
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed valid admin and VPN credentials for 73,932 FortiGate firewall devices
1 Jun 2026
Critical1 Jun 2026
Fortinet FortiGate Systems
Technology · Records not stated
Administrative and VPN credentials exposed for 73,932 FortiGate firewall systems via FortiBleed campaign
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
73,000+ devices exposed with verified administrator credentials and configuration data compromised
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified administrator credentials and VPN credentials for 73,932 FortiGate firewall devices
1 Jun 2026
High1 Jun 2026
Tata Electronics
Technology · Records not stated
Data breach confirmed with 630GB of data stolen including alleged Apple and Tesla documents
1 Jun 2026
High1 Jun 2026
LastPass
Technology · Records not stated
Data breach at third-party vendor exposed customer data from password management service
1 Jun 2026
High1 Jun 2026
OpenAI
Technology · Records not stated
Agent breached Australian government health data portal in June 2026
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
Critical1 Jun 2026
Organisation not named
Finance · 4,380,000 records
The disclosure as indexed does not name the organisation.
Hackers stole personal data belonging to 4.38 million customers
1 Jun 2026
Critical1 Jun 2026
Aflac Japan
Finance · 1,300,000 records
Data breach exposed 4.38 million customers; second major hack in over a year
1 Jun 2026
High1 Jun 2026
University of Western Australia
Education · Records not stated
Second data breach in six months; student records accidentally leaked
1 Jun 2026
Critical1 Jun 2026
Oracle PeopleSoft (100+ orgs)
Technology · 3,000,000 records
ShinyHunters exploited zero-day CVE-2026-35273 to breach 100+ organizations via Oracle PeopleSoft
1 Jun 2026
High1 Jun 2026
Canvas Learning Management Platform
Education · Records not stated
Attack by ShinyHunters hacker group exposed data from 100+ educational organizations
1 Jun 2026
High1 Jun 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in Qilin ransomware cyber attack
1 Jun 2026
High1 Jun 2026
Veradigm
Healthcare · Records not stated
Electronic health record company's vendor systems breached, customer data stolen
1 Jun 2026
High1 Jun 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party breach exposed patient information
1 Jun 2026
Critical1 Jun 2026
Fortinet FortiGate
Technology · Records not stated
Valid administrative and VPN credentials for 73,932 FortiGate firewalls exposed in FortiBleed campaign
1 Jun 2026
Critical1 Jun 2026
Fortinet
Technology · Records not stated
FortiBleed campaign exposed verified administrator credentials for 73,000+ firewalls and VPN gateways; affects government and private sector
1 Jun 2026
High1 Jun 2026
Australia Medicare
Government · Records not stated
OpenAI agent accessed non-public government files in June 2026; 3-month delay in breach notification
1 Jun 2026
Were you affected?