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.

5,359
Disclosures in the tracker, all years
2,075
Of those, indexed in 2026
136
Added in October
19
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 28 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

Critical9 Jul 2026
24B Credential Megadump
Sector not stated · 24,000,000,000 records
24B stolen credentials exposed from 36 sources
Our record
9 Jul 2026
Critical9 Jul 2026
Intel-sharing platform HSIN
Government · Records not stated
Intel-sharing platform HSIN breached for weeks
Our record
9 Jul 2026
High9 Jul 2026
Crunchbase
Technology · Records not stated
2M business records exfiltrated by ShinyHunters
Our record
9 Jul 2026
Critical9 Jul 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M records stolen including biometrics and SSNs
Our record
9 Jul 2026
Critical9 Jul 2026
HSIN network
Government · Records not stated
HSIN network breached, security plans exposed
Our record
9 Jul 2026
High9 Jul 2026
Eurail
Sector not stated · Records not stated
300K traveler passports and IBANs exposed
Our record
9 Jul 2026
Critical9 Jul 2026
Cybernews 24B Credential Dump
Technology · 24,000,000,000 records
24B credential records exposed via infostealer logs
Our record
9 Jul 2026
Critical9 Jul 2026
HSIN security planning network
Government · Records not stated
HSIN security planning network breached
Our record
9 Jul 2026
Critical9 Jul 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M records stolen including fingerprints
Our record
9 Jul 2026
Critical9 Jul 2026
DHS Homeland Security Network
Government · Records not stated
Sensitive gov intel-sharing platform breached
Our record
9 Jul 2026
High9 Jul 2026
Air Creebec Canada
Sector not stated · 10,000 records
70GB data stolen from Canadian regional airline
Our record
9 Jul 2026
Critical9 Jul 2026
DHS Homeland Security
Government · Records not stated
HSIN government info-sharing platform breached
Our record
9 Jul 2026
Critical9 Jul 2026
KDDI Japan ISPs
Technology · 14,200,000 records
14.2M email credentials exposed at six ISPs
Our record
9 Jul 2026
High9 Jul 2026
NAIC Insurance Commissioners
Finance · 12,000 records
Regulatory filings and credentials stolen by ShinyHunters
Our record
9 Jul 2026
Critical9 Jul 2026
Intel-sharing network HSIN
Government · Records not stated
Intel-sharing network HSIN breached for weeks
Our record
9 Jul 2026
High9 Jul 2026
Aflac Japan
Finance · 1,300,000 records
Policy details and bank accounts stolen
Our record
9 Jul 2026
Critical9 Jul 2026
Nissan Americas
Sector not stated · 53,000 records
Employee SSNs stolen via Oracle PeopleSoft zero-day
Our record
9 Jul 2026
Medium9 Jul 2026
Oxford CareerConnect
Education · Records not stated
Student PII exposed via career platform breach
Our record
9 Jul 2026
Critical9 Jul 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M records stolen including biometrics and SSNs
Our record
9 Jul 2026
Critical9 Jul 2026
Medtronic
Healthcare · 3,800,000 records
3.8M patient SSNs and health records stolen
Our record
9 Jul 2026
Critical9 Jul 2026
Charter Communications
Technology · 40,000,000 records
40M records stolen via vishing attack
Our record
9 Jul 2026
Critical9 Jul 2026
KDDI Japan Telco
Technology · 14,200,000 records
14.2M email addresses and passwords leaked
Our record
9 Jul 2026
High9 Jul 2026
Lake Region Healthcare
Healthcare · Records not stated
SSNs, biometrics and medical records confirmed stolen
Our record
9 Jul 2026
Critical9 Jul 2026
ADT
Sector not stated · 30,000 records
5.5M customer records leaked after April intrusion
Our record
9 Jul 2026
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