Weekly briefing No. 41 published 4 Oct 2026
Disclosure tracker › Disclosures in 2026
Intelligence · Disclosure tracker

Disclosures in 2026

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.

5,282
Disclosures in the tracker, all years
1,995
Of those, indexed in 2026
41
Added in October
9
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

3,949 results · Disclosures in 2026. Clear filters

High9 Jul 2026
Nissan North America
Sector not stated · Records not stated
Employee SSNs stolen via Oracle PeopleSoft flaw
9 Jul 2026
Critical9 Jul 2026
700Credit
Finance · Records not stated
5.8M automotive finance SSNs stolen via API
9 Jul 2026
Critical9 Jul 2026
US DHS HSIN
Government · Records not stated
Federal threat intel platform breached for weeks
9 Jul 2026
Critical9 Jul 2026
Global Credential Mega-Dump
Technology · 24,000,000,000 records
24B credential records from 36 infostealer sources
9 Jul 2026
Critical9 Jul 2026
Instructure Canvas
Education · 275,000,000 records
275M records across 9K institutions stolen
9 Jul 2026
Critical9 Jul 2026
Oracle PeopleSoft CVE-2026-35273
Technology · 3,000,000 records
300+ instances hit, 100+ orgs, HR/payroll data stolen
9 Jul 2026
Critical9 Jul 2026
Klue Supply Chain Breach
Technology · Records not stated
200 firms hit via stolen OAuth tokens and CRM keys
9 Jul 2026
Critical9 Jul 2026
24B credential records from 36 breach sources exposed
Sector not stated · 24,000,000,000 records
24B credential records from 36 breach sources exposed
9 Jul 2026
Critical9 Jul 2026
World Cup security planning data
Government · Records not stated
World Cup security planning data exposed via HSIN
9 Jul 2026
High9 Jul 2026
Chemco Canada
Sector not stated · Records not stated
Ransomware attack by Qilin group ongoing
9 Jul 2026
Medium9 Jul 2026
Chisholm Persson Ball Law
Legal · Records not stated
Akira ransomware attack on US law firm
9 Jul 2026
High9 Jul 2026
GitHub Developer Platform
Technology · Records not stated
4K code repositories stolen by TeamPCP group
9 Jul 2026
Critical9 Jul 2026
Carnival Corporation
Sector not stated · 6,000,000 records
6M customer records stolen including PII
9 Jul 2026
Critical9 Jul 2026
Nissan Motor Corporation
Sector not stated · 53,000 records
SSNs and banking data stolen from employees globally
9 Jul 2026
Critical9 Jul 2026
HSIN intelligence platform
Government · Records not stated
HSIN intelligence platform breached late May 2026
9 Jul 2026
Critical9 Jul 2026
Kubota North America
Sector not stated · 14,500 records
SSNs, bank accounts, and tax data accessed for 30+ days
9 Jul 2026
Critical9 Jul 2026
Infostealer Credential Dump
Sector not stated · Records not stated
24B stolen credentials exposed in public database
9 Jul 2026
Critical9 Jul 2026
24B Credential Dump
Sector not stated · 24,000,000,000 records
24B stolen credentials exposed in mega-leak
9 Jul 2026
Critical9 Jul 2026
Oracle PeopleSoft Campaign
Technology · 3,000,000 records
300 instances across 100 orgs breached
9 Jul 2026
Critical9 Jul 2026
24B Credential Megadump
Sector not stated · 24,000,000,000 records
24B stolen credentials exposed from 36 sources
9 Jul 2026
Critical9 Jul 2026
Intel-sharing platform HSIN
Government · Records not stated
Intel-sharing platform HSIN breached for weeks
9 Jul 2026
High9 Jul 2026
Crunchbase
Technology · Records not stated
2M business records exfiltrated by ShinyHunters
9 Jul 2026
Critical9 Jul 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M records stolen including biometrics and SSNs
9 Jul 2026
Critical9 Jul 2026
HSIN network
Government · Records not stated
HSIN network breached, security plans exposed
9 Jul 2026
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