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
69
Added in October
19
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.

68 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. Hong Kong16 Oct 2026AOMEI Backupper usersHow they got in: a supplier or vendor that was compromised first.The Hacker News
Critical12 Aug 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M patient biometrics and SSNs exfiltrated
12 Aug 2026
Critical12 Aug 2026
100K+ officer records and contacts exposed
Government · Records not stated
100K+ officer records and contacts exposed
12 Aug 2026
Critical12 Aug 2026
100K officer and staff records exposed
Government · Records not stated
100K officer and staff records exposed
12 Aug 2026
Critical12 Aug 2026
Billions of records across 165 organizations stolen
Technology · Records not stated
Billions of records across 165 organizations stolen
12 Aug 2026
Critical12 Aug 2026
TriZetto Healthcare Revenue Tech
Healthcare · 3,400,000 records
3.4M patient records stolen
12 Aug 2026
Medium12 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Researchers observed the novel campaign exploiting unauthenticated guest access to quietly enumerate and exfiltrate exposed data from both platforms. The post Stealthy ‘City-Forum’ Attacks Target Salesforce and…
12 Aug 2026
Medium12 Aug 2026
Unread antivirus
Sector not stated · Records not stated
Unread antivirus alerts and an unpatched content management system exposed Britain's ACRO to three separate data breaches, according to a reprimand notice.
12 Aug 2026
Critical12 Aug 2026
Unknown Organization
Sector not stated · 165,000,000 records
Canadian hacker pleaded guilty to data breach conspiracy compromising over 165 million people
12 Aug 2026
Critical12 Aug 2026
Origin Energy
Sector not stated · Records not stated
Energy company cybersecurity incident affected approximately 900,000 current and former customers
12 Aug 2026
High12 Aug 2026
Hugging Face
Technology · Records not stated
Security incident during AI model evaluation; external advisors conducting thorough review
12 Aug 2026
Critical12 Aug 2026
100K+ police officer records stolen by ExfilSquad
Government · Records not stated
100K+ police officer records stolen by ExfilSquad
12 Aug 2026
Critical12 Aug 2026
108K+ officer records published on dark web
Government · Records not stated
108K+ officer records published on dark web
12 Aug 2026
Critical12 Aug 2026
100K+ officer records exfiltrated
Government · Records not stated
100K+ officer records exfiltrated
12 Aug 2026
Medium12 Aug 2026
Service d'usinage 9002
Sector not stated · Records not stated
Qilin ransomware hit Canadian aerospace defense supplier
12 Aug 2026
Critical12 Aug 2026
Optus
Technology · Records not stated
2022 data breach; Australian privacy regulator sued for alleged privacy law violations
12 Aug 2026
High12 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised through vendor breach, third-party data exposure
12 Aug 2026
Medium12 Aug 2026
JK Capital Management
Finance · Records not stated
Finance firm breached by OROVA threat actor
12 Aug 2026
High12 Aug 2026
Adam Haertle
Healthcare · Records not stated
Adam Haertle reports: MyDr has just announced that it is investigating a serious security incident on its network. The alleged perpetrators of this incident contacted us earlier and claimed to have access to patient…
12 Aug 2026
Medium12 Aug 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Affecting European contract logistics operations at eight Ceva warehouses, the incident caused shipment delays for multiple customers. The post Ceva Logistics Operations Disrupted by Cyberattack appeared first on…
12 Aug 2026
Medium12 Aug 2026
Organisation not named
Technology · 434,000 records
The disclosure as indexed does not name the organisation.
Two malicious LiteLLM releases sat on PyPI for about 40 minutes in March carrying credential-stealing code capable of harvesting cloud keys, SSH keys, Kubernetes tokens, database passwords, and other secrets from…
12 Aug 2026
Critical12 Aug 2026
Basic-Fit Gym
Sector not stated · Records not stated
1M members' bank and personal data breached
12 Aug 2026
Critical12 Aug 2026
100K officer records leaked by ExfilSquad
Government · Records not stated
100K officer records leaked by ExfilSquad
12 Aug 2026
Critical12 Aug 2026
100K+ officers and staff PII leaked
Government · Records not stated
100K+ officers and staff PII leaked
12 Aug 2026
Critical12 Aug 2026
AssetMark Wealth Platform
Finance · 570,000 records
570K individuals exposed in wealth management breach
12 Aug 2026
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