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.

5,301
Disclosures in the tracker, all years
2,016
Of those, indexed in 2026
67
Added in October
19
Added in the last 7 days
7
Sectors covered

Source: LeakTrace disclosure tracker, 19 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.

3,994 results · Disclosures in 2026. Clear filters

High1 Jul 2026
Breached Law Firm
Legal · 13,000 records
Cyberattack exposed hospital records for approximately 13,000 patients in New Jersey
1 Jul 2026
Critical1 Jul 2026
Partnered Health (Australian clinics)
Healthcare · Records not stated
Medical records including Medicare numbers, treatment details, and pathology results exposed on dark web
1 Jul 2026
High1 Jul 2026
Exact Sciences/Abbott
Healthcare · Records not stated
Data breach exposed sensitive personal information from at-home test users
1 Jul 2026
High1 Jul 2026
Department for Education (DfE)
Government · 607,000 records
Cyberattack exposed approximately 607,000 records
1 Jul 2026
High1 Jul 2026
Exact Sciences / Abbott
Healthcare · Records not stated
Patient sensitive and personal information exposed through at-home diagnostic tests
1 Jul 2026
High1 Jul 2026
Organisation not named
Finance · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack; data stolen and subsequently deleted by ransomware gang
1 Jul 2026
High1 Jul 2026
Ransomware attack with data deletion
Finance · Records not stated
Ransomware attack with data deletion confirmation received from hacker gang
1 Jul 2026
Medium1 Jul 2026
KT Corp
Sector not stated · Records not stated
Rogue femtocell breach exposed 16,647 subscribers and stole SMS payment information.
1 Jul 2026
High1 Jul 2026
TD Bank
Finance · Records not stated
Data security incident affecting customers; separate newer breach disclosed July 2026
1 Jul 2026
Critical1 Jul 2026
Qantas
Sector not stated · 5,670,000 records
5.67M customer records exposed through vishing attack targeting tech support
1 Jul 2026
High1 Jul 2026
South Florida Injury Centers
Healthcare · 1,525 records
1,525 individuals affected; SSNs and medical records (PHI/PII) exposed
1 Jul 2026
High1 Jul 2026
Tribeca Festival
Sector not stated · Records not stated
Hundreds of thousands of records and celebrities' contact information exposed in data leak
1 Jul 2026
Critical1 Jul 2026
Charter Spectrum
Technology · 42,000,000 records
4.9M confirmed accounts breached; ShinyHunters claims 42M records stolen
1 Jul 2026
High1 Jul 2026
Partnered Health (Australia)
Healthcare · Records not stated
Personal information and medical details stolen from 21 clinics in cyber-attack
1 Jul 2026
Critical1 Jul 2026
Suno (AI Music Platform)
Technology · 55,000,000 records
Data breach exposed 55 million user accounts
1 Jul 2026
Critical1 Jul 2026
EY (Ernst & Young)
Finance · Records not stated
Tax records, Social Security numbers, and financial account codes exposed through compromised third-party help-desk platform
1 Jul 2026
High1 Jul 2026
Redtail Technology
Technology · Records not stated
Data breach exposed names, Social Security numbers, and account numbers
1 Jul 2026
Critical1 Jul 2026
Ernst & Young (EY)
Finance · Records not stated
ShinyHunters claimed breach exposing tax client data; vendor breach with 81-day notification delay
1 Jul 2026
Critical1 Jul 2026
Suno (AI music platform)
Technology · 55,000,000 records
Data breach exposed 55 million user accounts
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
Healthcare billing company in Augusta, Georgia exposed 1.26M patient records in PEAR ransomware attack
1 Jul 2026
Critical1 Jul 2026
Suno
Technology · 55,000,000 records
Data breach exposed 55 million user accounts at AI music platform
1 Jul 2026
High1 Jul 2026
Unnamed law firm
Legal · 13,000 records
Cyberattack exposed hospital patient records for 13,000 patients in New Jersey
1 Jul 2026
Critical1 Jul 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
Healthcare billing company PEAR ransomware attack exposed 1.26M patient records
1 Jul 2026
Critical1 Jul 2026
Japanese Telco (unnamed)
Technology · 12,000,000 records
Cyberattack exposed 12 million customer emails from email management systems
1 Jul 2026
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