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.

5,291
Disclosures in the tracker, all years
2,004
Of those, indexed in 2026
49
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.

3,968 results · Disclosures in 2026. Clear filters

Critical1 Aug 2026
Suno AI Music Platform
Technology · 55,300,000 records
55.3M accounts exposed with payment data
Our record
1 Aug 2026
Critical1 Aug 2026
KDDI
Technology · 12,000,000 records
12M email accounts and 7.6M passwords exposed
Our record
1 Aug 2026
Critical1 Aug 2026
US DHS Info Network
Government · Records not stated
Federal security network breached pre-FIFA World Cup
Our record
1 Aug 2026
Critical1 Aug 2026
Ernst Young
Finance · Records not stated
SSNs and tax records stolen from helpdesk platform
Our record
1 Aug 2026
Critical1 Aug 2026
Abbott Exact Sciences
Healthcare · 30,000,000 records
30M patient records stolen via vishing attack
Our record
1 Aug 2026
High1 Aug 2026
Unlimited Technology Systems
Healthcare · 442,000 records
442K patient records exposed in ransomware attack
Our record
1 Aug 2026
Critical1 Aug 2026
Abbott / Exact Sciences
Healthcare · 30,000,000 records
30M rows stolen, 1M SSNs exposed
Our record
1 Aug 2026
Critical1 Aug 2026
Coca-Cola Fairlife
Sector not stated · Records not stated
1TB data stolen in ransomware attack
Our record
1 Aug 2026
High1 Aug 2026
Klue
Technology · Records not stated
200 firms hit via stolen OAuth credentials
Our record
1 Aug 2026
Critical1 Aug 2026
Cardiovascular Institute New England
Healthcare · Records not stated
Full medical and financial records confirmed exposed
Our record
1 Aug 2026
Critical1 Aug 2026
Nissan Motor
Sector not stated · 53,000 records
SSNs and banking data stolen from US and Canada employees
Our record
1 Aug 2026
Critical1 Aug 2026
AssuranceAmerica Insurance
Finance · Records not stated
6.9M driver license numbers stolen
Our record
1 Aug 2026
Critical1 Aug 2026
Craneware Healthcare Billing
Healthcare · Records not stated
Patient and customer data stolen from 12K US facilities
Our record
1 Aug 2026
High1 Aug 2026
Klue
Technology · Records not stated
200 firms breached via stale Salesforce credential
Our record
1 Aug 2026
High1 Aug 2026
Estee Lauder
Retail · Records not stated
SSNs, passports, bank data stolen from employees
Our record
1 Aug 2026
Critical1 Aug 2026
Fairlife Coca-Cola
Sector not stated · Records not stated
Ransomware hit production systems, 1TB data stolen
Our record
1 Aug 2026
Critical1 Aug 2026
EY Ernst Young
Finance · Records not stated
SSNs, tax records, card numbers stolen from clients
Our record
1 Aug 2026
Critical1 Aug 2026
KDDI
Technology · 14,200,000 records
14.2M email credentials exposed at six ISPs
Our record
1 Aug 2026
High1 Aug 2026
Cardiovascular Institute NE
Healthcare · Records not stated
SSNs and patient medical records leaked
Our record
1 Aug 2026
High1 Aug 2026
South Korea MFA
Government · Records not stated
6000 diplomat records stolen over 10 months
Our record
1 Aug 2026
High1 Aug 2026
Unlimited Systems
Healthcare · 442,000 records
442K patient records exposed in ransomware
Our record
1 Aug 2026
Critical1 Aug 2026
Suno AI
Technology · 55,000,000 records
55M user names and addresses stolen
Our record
1 Aug 2026
Critical1 Aug 2026
Ernst and Young
Finance · Records not stated
SSNs and tax data stolen via support system
Our record
1 Aug 2026
Critical1 Aug 2026
Fluke Corporation
Technology · Records not stated
21M Salesforce records with PII compromised
Our record
1 Aug 2026
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