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
22
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 21 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. China20 Oct 2026Deere, SharkNinja and CumminsHow they got in: a known flaw in software the victim ran.The Hacker News
  2. China20 Oct 2026John DeereHow they got in: automated AI tools that work through many organizations at once.SecurityWeek
  3. China14 Oct 2026Hospitals and healthcare organizationsHow they got in: email made to look like it came from a trusted sender.SecurityWeek
Critical1 Aug 2026
Victorian Courts
Government · Records not stated
Hackers leaked sensitive court data to dark web including family violence intervention details
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised in on-premises Microsoft servers, likely due to SharePoint vulnerabilities
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack; stolen data deletion confirmed by hacker group
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
135k contact records stolen; police and government contact details leaked on dark web
1 Aug 2026
High1 Aug 2026
Beacon CRM
Sector not stated · Records not stated
Software firm breach affected charities; Charity Commission planning guidance
1 Aug 2026
Critical1 Aug 2026
Victorian Court System
Government · Records not stated
Sensitive data including family violence intervention orders leaked to dark web
1 Aug 2026
High1 Aug 2026
AnMed
Healthcare · Records not stated
Nonprofit health system cyberattack forced facility closures and prolonged recovery
1 Aug 2026
Critical1 Aug 2026
Multiple US Financial Firms
Finance · Records not stated
Hackers breaking into large U.S. financial firms to steal sensitive data and extort victims
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised via anomalies detected in on-premises Microsoft servers
1 Aug 2026
Critical1 Aug 2026
Snowflake
Technology · 165,000,000 records
Credential-based cloud intrusion exposing over 100 million records (2024-2026)
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
135,000 contact records of police and government leaked on dark web by ExfilSquad
1 Aug 2026
High1 Aug 2026
Exact Sciences/Abbott
Healthcare · Records not stated
Personal and confidential information from at-home diagnostic test users exposed
1 Aug 2026
Critical1 Aug 2026
Ernst & Young
Finance · Records not stated
Hackers stole names, addresses, Social Security numbers, and financial information from third-party platform
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised, likely through SharePoint vulnerabilities in on-premises Microsoft servers
1 Aug 2026
High1 Aug 2026
NYC Regional Center
Sector not stated · Records not stated
Data breach affecting individuals at NYC Regional Center LLC; compensation lawsuit investigation
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Data stolen in ransomware attack; attacker confirmed data deletion
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Police and government contact details, names and emails leaked on dark web
1 Aug 2026
High1 Aug 2026
200 accounts compromised through on-premises Microsoft server vulnerabilities
Government · Records not stated
200 accounts compromised through on-premises Microsoft server vulnerabilities
1 Aug 2026
Critical1 Aug 2026
PEAR ransomware attack
Healthcare · 1,260,000 records
PEAR ransomware attack exposed 1.26 million patients' medical billing data
1 Aug 2026
High1 Aug 2026
Exact Sciences / Abbott
Healthcare · Records not stated
Patient sensitive personal information exposed from at-home diagnostic tests
1 Aug 2026
High1 Aug 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack; hackers claim data deletion after extortion
1 Aug 2026
High1 Aug 2026
Police and government contact details
Government · Records not stated
Police and government contact details leaked on dark web including names and emails
1 Aug 2026
High1 Aug 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
200 accounts compromised through suspected SharePoint vulnerabilities in on-premises Microsoft servers
1 Aug 2026
Critical1 Aug 2026
1.26 million patients exposed in PEAR ransomware attack
Healthcare · 1,260,000 records
1.26 million patients exposed in PEAR ransomware attack
1 Aug 2026
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