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.

5,310
Disclosures in the tracker, all years
2,025
Of those, indexed in 2026
76
Added in October
22
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.

High1 Aug 2026
Estee Lauder
Retail · Records not stated
SSNs, passports, bank data stolen from employees
1 Aug 2026
Critical1 Aug 2026
Fairlife Coca-Cola
Sector not stated · Records not stated
Ransomware hit production systems, 1TB data stolen
1 Aug 2026
Critical1 Aug 2026
EY Ernst Young
Finance · Records not stated
SSNs, tax records, card numbers stolen from clients
1 Aug 2026
Critical1 Aug 2026
KDDI
Technology · 14,200,000 records
14.2M email credentials exposed at six ISPs
1 Aug 2026
High1 Aug 2026
Cardiovascular Institute NE
Healthcare · Records not stated
SSNs and patient medical records leaked
1 Aug 2026
High1 Aug 2026
South Korea MFA
Government · Records not stated
6000 diplomat records stolen over 10 months
1 Aug 2026
High1 Aug 2026
Unlimited Systems
Healthcare · 442,000 records
442K patient records exposed in ransomware
1 Aug 2026
Critical1 Aug 2026
Suno AI
Technology · 55,000,000 records
55M user names and addresses stolen
1 Aug 2026
Critical1 Aug 2026
Ernst and Young
Finance · Records not stated
SSNs and tax data stolen via support system
1 Aug 2026
Critical1 Aug 2026
Fluke Corporation
Technology · Records not stated
21M Salesforce records with PII compromised
1 Aug 2026
High1 Aug 2026
Mount Royal University
Education · Records not stated
10TB stolen, students and staff impacted
1 Aug 2026
High1 Aug 2026
Chick-fil-A
Retail · Records not stated
Account credentials stolen via stuffing attack
1 Aug 2026
High1 Aug 2026
Origin Energy
Sector not stated · Records not stated
Customer data exposed in confirmed cyberattack
1 Aug 2026
High1 Aug 2026
Mount Royal University
Education · Records not stated
10TB stolen from Canadian university systems
1 Aug 2026
High1 Aug 2026
South Korea Diplomatic Academy
Government · Records not stated
6K diplomat records stolen over 10 months
1 Aug 2026
High1 Aug 2026
Abbott Laboratories
Healthcare · Records not stated
Customer data stolen via voice phishing campaign
1 Aug 2026
Critical1 Aug 2026
Craneware
Healthcare · Records not stated
Significant data stolen affecting 2K US hospitals
1 Aug 2026
Critical1 Aug 2026
EY Tax Practice
Finance · Records not stated
SSNs and tax data stolen via third-party helpdesk
1 Aug 2026
High31 Jul 2026
Telecom subsidiaries (France)
Technology · Records not stated
Data breach resulting in €42 million GDPR fines for lack of basic security controls in 2024
31 Jul 2026
High31 Jul 2026
Yearslong data breach
Healthcare · Records not stated
Yearslong data breach exposed residents' private health-related information
31 Jul 2026
Critical31 Jul 2026
Suno
Technology · 55,000,000 records
Data breach exposed 55 million user accounts on AI music platform
31 Jul 2026
Critical31 Jul 2026
Healthcare billing company data breach
Healthcare · 1,260,000 records
Healthcare billing company data breach exposed sensitive information affecting 1.26 million people
31 Jul 2026
High31 Jul 2026
Unauthorized access compromised information; breach reported in 2024
Government · Records not stated
Unauthorized access compromised information; breach reported in 2024
31 Jul 2026
High31 Jul 2026
French Telco Subsidiaries
Technology · Records not stated
Data breach from 2024 with cybersecurity vulnerabilities; company fined €42 million by French regulator
31 Jul 2026
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