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.
5,337
Disclosures in the tracker, all years
2,050
Of those, indexed in 2026
104
Added in October
24
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 24 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
Critical1 Mar 2026
TriZetto (Year-long hack)
Healthcare · 3,400,000 records
Year-long network hack exposed records on 3.4 million people
1 Mar 2026
High1 Mar 2026
Foster City Government
Government · Records not stated
Ransomware attack forced city computer systems offline for days
1 Mar 2026
Critical1 Mar 2026
CISA (US Department)
Government · Records not stated
Breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March 2026
1 Mar 2026
High1 Mar 2026
Partnered Health
Healthcare · Records not stated
Personal information and medical details breached across 21 clinics in Australian healthcare provider attack
1 Mar 2026
High1 Mar 2026
Organisation not named
Legal · 13,000 records
The disclosure as indexed does not name the organisation.
13,000 patient records in New Jersey exposed through cyberattack on law firm representing state hospitals
1 Mar 2026
High1 Mar 2026
Ransomware attack resulted in data
Education · Records not stated
Ransomware attack resulted in data leak including driver's license numbers and voter registration data
1 Mar 2026
Critical1 Mar 2026
Canada Life
Finance · 5,500,000 records
Threat actor claimed 5.5 million records allegedly tied to Canada's biggest insurer for sale on cybercrime marketplace
1 Mar 2026
High1 Mar 2026
Ericsson
Technology · 15,661 records
Vishing attack exposed data of 15,661 people including SSNs, financial and medical records
1 Mar 2026
High1 Mar 2026
Lehigh Carbon Community College
Education · Records not stated
Data breach caused extended school closure, extent of exposure unclear
1 Mar 2026
Critical1 Mar 2026
Organisation not named
Government · Records not stated
The disclosure as indexed does not name the organisation.
US agency breached through Cisco vulnerability; FIRESTARTER backdoor allowed persistent access through March 2026
1 Mar 2026
High1 Mar 2026
Ransomware attack caused data
Healthcare · Records not stated
Ransomware attack caused data leak exposing patient information from Multiethnic Cohort Study including driver's license and voter data
1 Mar 2026
Critical1 Mar 2026
IDMerit
Technology · Records not stated
Unprotected database exposed 1 billion identity records used by banks and identity verification
1 Mar 2026
High1 Mar 2026
CareCloud
Healthcare · Records not stated
Healthcare software firm informed SEC of potential patient data leak; electronic health records may have been leaked after system intrusion
1 Mar 2026
High1 Mar 2026
Companies House UK
Government · Records not stated
Data exposed during five-month security issue affecting UK firm records
1 Mar 2026
High1 Mar 2026
UK Companies House
Government · Records not stated
Data exposed during five-month security issue affecting all UK firms' records
1 Mar 2026
High1 Mar 2026
Foster City
Government · Records not stated
Ransomware attack forced city computer system offline; state of emergency declared
1 Mar 2026
High1 Mar 2026
University of Hawaiʻi Cancer Center
Education · Records not stated
Data leak following ransomware attack exposing Multiethnic Cohort Study data including driver's license and voter IDs
1 Mar 2026
Critical1 Mar 2026
PIH Health
Healthcare · 2,950,000 records
Healthcare provider notified 2.95 million patients of 2024 hacking incident/ransomware
1 Mar 2026
High1 Mar 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack led to data leak including driver's license numbers and voter information
1 Mar 2026
High1 Mar 2026
CISA (U.S. Department)
Government · Records not stated
US agency breached through Cisco vulnerability with FIRESTARTER backdoor malware
1 Mar 2026
High1 Mar 2026
Organisation not named
Education · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack led to data leak including driver's license numbers and voter info
1 Mar 2026
Critical1 Mar 2026
Qantas
Sector not stated · 5,670,000 records
5.67 million customer records exposed via vishing attack tech support scam
1 Mar 2026
High1 Mar 2026
South Florida Injury Centers
Healthcare · 1,525 records
1,525 records breached exposing SSNs and medical records
1 Mar 2026
High1 Mar 2026
Ernst & Young (EY)
Finance · Records not stated
Third-party vendor breach exposed tax client data after 81-day notification delay
1 Mar 2026
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