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

Medium9 Jul 2026
Oxford University CareerConnect
Education · Records not stated
Student PII exposed via career platform breach
Our record
9 Jul 2026
High9 Jul 2026
Tchap French Gov Messaging
Government · Records not stated
73K government user accounts and 643K messages stolen
Our record
9 Jul 2026
High9 Jul 2026
London Hydro
Sector not stated · 170,000 records
170K customer account and billing records accessed
Our record
9 Jul 2026
Critical9 Jul 2026
DentaQuest
Healthcare · Records not stated
2.6M Medicaid health records leaked by ShinyHunters
Our record
9 Jul 2026
Critical9 Jul 2026
Aflac Life Insurance Japan
Finance · 4,380,000 records
4.38M customer records stolen including bank details
Our record
9 Jul 2026
Medium9 Jul 2026
Chisholm Persson Ball
Legal · Records not stated
Akira ransomware hit US law firm
Our record
9 Jul 2026
High9 Jul 2026
Eastman Kodak
Sector not stated · 2,200,000 records
2.2M customer records stolen by ShinyHunters
Our record
9 Jul 2026
Critical9 Jul 2026
Nissan Motor
Sector not stated · 53,000 records
Employee SSNs and bank data stolen via Oracle zero-day
Our record
9 Jul 2026
Critical9 Jul 2026
KDDI Japan
Technology · 14,200,000 records
14.2M email credentials exposed at six ISPs
Our record
9 Jul 2026
Critical9 Jul 2026
Charter Communications
Technology · 4,900,000 records
4.9M customer accounts breached
Our record
9 Jul 2026
High9 Jul 2026
One Medical Amazon
Healthcare · Records not stated
Archived senior care records breached via third-party storage
Our record
9 Jul 2026
Critical9 Jul 2026
KDDI Six ISPs
Technology · 14,200,000 records
14.2M email logins exposed via third-party flaw
Our record
9 Jul 2026
Critical9 Jul 2026
Cybernews Credential Dump
Technology · Records not stated
24B stolen credential records publicly exposed
Our record
9 Jul 2026
High9 Jul 2026
Canada House of Commons
Government · Records not stated
Employee PII stolen via SharePoint zero-day
Our record
9 Jul 2026
Critical9 Jul 2026
Anne Arundel Dermatology
Healthcare · 1,900,000 records
1.9M patient PHI records exfiltrated
Our record
9 Jul 2026
Critical9 Jul 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M records with SSNs and biometrics stolen
Our record
9 Jul 2026
Critical9 Jul 2026
Instructure Canvas
Education · Records not stated
30M student and staff records stolen
Our record
9 Jul 2026
High9 Jul 2026
One Medical
Healthcare · Records not stated
Archived senior care patient records accessed
Our record
9 Jul 2026
Critical9 Jul 2026
Tchap French Government
Government · Records not stated
73K government accounts and 643K messages stolen
Our record
9 Jul 2026
High9 Jul 2026
Novo Nordisk
Healthcare · Records not stated
Drug research and patient trial data exfiltrated
Our record
9 Jul 2026
Critical9 Jul 2026
Instructure Canvas LMS
Education · Records not stated
275M student records stolen by ShinyHunters
Our record
9 Jul 2026
Critical9 Jul 2026
Threat intel platform
Government · Records not stated
Threat intel platform breached during World Cup ops
Our record
9 Jul 2026
Critical9 Jul 2026
Illinois Dept Human Services
Government · Records not stated
Hundreds of thousands of health records exposed publicly
Our record
9 Jul 2026
Critical9 Jul 2026
24B Credential Mega-Dump
Sector not stated · 24,000,000,000 records
24B stolen credentials exposed in 8.3TB public database
Our record
9 Jul 2026
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