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.

5,306
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.

3,996 results · Disclosures in 2026. Clear filters

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
High9 Jul 2026
Eurail
Sector not stated · Records not stated
300K traveler passports and IBANs exposed
9 Jul 2026
Critical9 Jul 2026
Cybernews 24B Credential Dump
Technology · 24,000,000,000 records
24B credential records exposed via infostealer logs
9 Jul 2026
Critical9 Jul 2026
HSIN security planning network
Government · Records not stated
HSIN security planning network breached
9 Jul 2026
Critical9 Jul 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M records stolen including fingerprints
9 Jul 2026
Critical9 Jul 2026
DHS Homeland Security Network
Government · Records not stated
Sensitive gov intel-sharing platform breached
9 Jul 2026
High9 Jul 2026
Air Creebec Canada
Sector not stated · 10,000 records
70GB data stolen from Canadian regional airline
9 Jul 2026
Critical9 Jul 2026
DHS Homeland Security
Government · Records not stated
HSIN government info-sharing platform breached
9 Jul 2026
Critical9 Jul 2026
KDDI Japan ISPs
Technology · 14,200,000 records
14.2M email credentials exposed at six ISPs
9 Jul 2026
High9 Jul 2026
NAIC Insurance Commissioners
Finance · 12,000 records
Regulatory filings and credentials stolen by ShinyHunters
9 Jul 2026
Critical9 Jul 2026
Intel-sharing network HSIN
Government · Records not stated
Intel-sharing network HSIN breached for weeks
9 Jul 2026
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