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.

5,336
Disclosures in the tracker, all years
2,049
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 24 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.

74 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. Japan22 Oct 2026CapcomThe source does not say how they got in.BleepingComputer
  2. Japan19 Oct 2026Nikkei Inc.How they got in: stolen or reused passwords.BleepingComputer
  3. Japan16 Oct 2026Burger King JapanThe source does not say how they got in.Security Affairs
  4. Japan16 Oct 2026BK JapanThe source does not say how they got in.SecurityWeek
  5. Japan16 Oct 2026Al Jazeera Media NetworkHow they got in: a supplier or vendor that was compromised first.BleepingComputer
High1 Jul 2026
Clover Health
Healthcare · Records not stated
Health insurer disclosed data breach; data type and victim count not yet determined
1 Jul 2026
High1 Jul 2026
Craneware
Healthcare · Records not stated
Hospital software vendor breach exposed healthcare customer data through supply-chain attack
1 Jul 2026
High1 Jul 2026
River Financial Corporation
Finance · Records not stated
Ransomware attack; hackers deleted stolen data after ransom demand; confirmed data deletion
1 Jul 2026
Critical1 Jul 2026
Instructure (Canvas platform)
Education · Records not stated
Supply chain breach generating majority of 2026 breach notices
1 Jul 2026
High1 Jul 2026
Ransomware attack disrupted systems operations
Sector not stated · Records not stated
Ransomware attack disrupted systems operations
1 Jul 2026
Critical1 Jul 2026
Comcast Xfinity
Technology · 35,000,000 records
Cyberattack exposes personal information of Xfinity customers; $117.5M settlement reached
1 Jul 2026
High1 Jul 2026
LVM (Latvian State Forestry)
Sector not stated · Records not stated
Ransomware attack, systems still being restored weeks after incident
1 Jul 2026
High1 Jul 2026
DHS (Homeland Security)
Government · Records not stated
Network intrusion on Homeland Security Information Network supporting World Cup operations confirmed
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network supporting World Cup infrastructure
1 Jul 2026
High1 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack attributed to foreign financially motivated threat group
1 Jul 2026
High1 Jul 2026
LVM (Latvian Forestry)
Sector not stated · Records not stated
Ransomware attack by foreign financially motivated group disrupted forestry operations
1 Jul 2026
High1 Jul 2026
Organisation not named
Sector not stated · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack attributed to foreign financially motivated group; systems restoration ongoing
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network confirmed after being ruled false positive twice
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network confirmed after twice ruled false positive
1 Jul 2026
High1 Jul 2026
LVM (Latvian Forestry Company)
Sector not stated · Records not stated
Ransomware attack attributed to foreign financially motivated group
1 Jul 2026
High1 Jul 2026
LVM (Latvian forestry company)
Sector not stated · Records not stated
Ransomware attack by foreign financially motivated group; systems still being restored
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network confirmed after two false positive rulings
1 Jul 2026
Critical1 Jul 2026
FortiBleed/Fortinet
Technology · Records not stated
73,932 FortiGate firewall administrative and VPN credentials exposed via credential exposure campaign
1 Jul 2026
High1 Jul 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient records stolen in cyberattack affecting 21 clinics, personal info and medical notes exposed
1 Jul 2026
Critical1 Jul 2026
Network intrusion
Government · Records not stated
Network intrusion confirmed on Homeland Security Information Network
1 Jul 2026
High1 Jul 2026
LastPass
Technology · Records not stated
Data breach at third-party vendor exposed customer data; latest breach confirmed
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network; initially ruled false positive twice
1 Jul 2026
Critical1 Jul 2026
Partnered Clinics (Australia)
Healthcare · Records not stated
Cyber-attack exposed Medicare numbers, treatment details, pathology results of patients
1 Jul 2026
High1 Jul 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
Network intrusion on Homeland Security Information Network supporting World Cup games
1 Jul 2026
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