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.

5,306
Disclosures in the tracker, all years
2,020
Of those, indexed in 2026
68
Added in October
18
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 20 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.

65 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. China14 Oct 2026Hospitals and healthcare organizationsHow they got in: email made to look like it came from a trusted sender.SecurityWeek
High6 Aug 2026
Healthcare Highways
Healthcare · Records not stated
Ransomware attack on US health network provider
6 Aug 2026
High6 Aug 2026
Loyalist College
Education · Records not stated
INC_RANSOM ransomware attack on Canadian college
6 Aug 2026
High6 Aug 2026
CareCloud Health
Healthcare · 350,000 records
350K patient SSNs and payment records stolen from AWS
6 Aug 2026
Critical6 Aug 2026
PNLD UK Police Database
Government · Records not stated
Police and government contact data published on dark web
6 Aug 2026
Critical6 Aug 2026
Craneware Group
Healthcare · Records not stated
Significant volume stolen from US hospital billing systems
6 Aug 2026
Medium6 Aug 2026
Meta AI model
Sector not stated · Records not stated
Meta has become the latest AI company to confirm that one of its models hacked a real organization during cybersecurity testing, as similar incidents continue to emerge following OpenAI'sOpenAI's initial disclosure…
6 Aug 2026
Medium6 Aug 2026
ThreatsDay
Technology · Records not stated
Apparently, opening the thing is now enough. A repo can run before the first prompt, a package can hide among hundreds, and a harmless-looking PDF can finish the job. This week runs on cheap leverage: exposed servers…
6 Aug 2026
High6 Aug 2026
Pennington County Attorney
Government · Records not stated
Government systems compromised in cyberattack
6 Aug 2026
High6 Aug 2026
WilmerHale Law Firm
Legal · Records not stated
Client SSNs and PII exposed in intrusion
6 Aug 2026
High6 Aug 2026
Klue Intelligence Platform
Technology · Records not stated
195-200 firms breached via legacy credential
6 Aug 2026
Critical6 Aug 2026
Nayax Fintech
Finance · Records not stated
100TB stolen including payment transaction records
6 Aug 2026
Critical6 Aug 2026
KDDI Email Platform
Technology · 14,200,000 records
14.2M email account records exposed
6 Aug 2026
Critical6 Aug 2026
Aflac Life Insurance Japan
Finance · 1,300,000 records
4.38M policyholders and bank accounts stolen
6 Aug 2026
Critical6 Aug 2026
Klue Supply Chain
Technology · 2,022 records
~200 firms breached via unrevoked 2022 credential
6 Aug 2026
Medium6 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Forescout found 22 internet-facing Rockwell Automation programmable logic controllers (PLCs) in cities hit by recent cyberattacks on US water utilities. Nineteen used the same mobile carrier network. Its August 3 scan…
6 Aug 2026
Medium6 Aug 2026
Liechtenstein Beneficial Register
Government · Records not stated
31K corporate ownership records breached
6 Aug 2026
Critical6 Aug 2026
Klue Supply Chain Breach
Technology · Records not stated
200 firms hit via stale OAuth credential
6 Aug 2026
Medium6 Aug 2026
The NL Times
Sector not stated · Records not stated
The NL Times reports: Online retailer Bol has warned customers about a data breach involving one of its logistics partners. The company said unauthorized parties accessed the partner’s systems, but emphasized…
6 Aug 2026
Medium6 Aug 2026
Organisation not named
Sector not stated · 100,000,000 records
The disclosure as indexed does not name the organisation.
A Canadian hacker has admitted involvement in the widespread compromise of 165 Snowflake customer accounts used to steal data and extort victims
6 Aug 2026
Medium6 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
The incident involved a testing environment set up by Irregular, similar to what Anthropic reported last week. The post Meta AI Hacked External Systems During Cybersecurity Testing appeared first on SecurityWeek.
6 Aug 2026
Medium6 Aug 2026
Liechtenstein Government Register
Government · Records not stated
31K corporate beneficiary records breached
6 Aug 2026
Critical6 Aug 2026
DentaQuest Sun Life
Healthcare · Records not stated
2.6M Medicaid beneficiary records leaked
6 Aug 2026
Critical6 Aug 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M patient biometric and health records stolen
6 Aug 2026
High6 Aug 2026
GitHub
Technology · Records not stated
4,000 dev code repositories exfiltrated
6 Aug 2026
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