Disclosure tracker › Healthcare disclosures
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Healthcare disclosures
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.
5,582
Disclosures in the tracker, all years
2,082
Of those, indexed in 2026
146
Added in October
21
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 31 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,552 results · Healthcare disclosures. Clear filters
High6 Aug 2026
Data breach
Healthcare · Records not stated
Data breach exposed SSNs and medical records of patients
6 Aug 2026
Medium6 Aug 2026
6 Aug 2026
High6 Aug 2026
Synnovis/Mid South Essex NHS
Healthcare · 900,000 records
Thousands of NHS patient records stolen during major ransomware attack
6 Aug 2026
Critical6 Aug 2026
Abbott Labs Exact Sciences
Healthcare · 30,000,000 records
30M patient records, 1M SSNs stolen by ShinyHunters
6 Aug 2026
High6 Aug 2026
6 Aug 2026
Critical6 Aug 2026
Unknown Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed sensitive protected health data on 1.3 million people to dark web
6 Aug 2026
Critical6 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in major ransomware attack affecting healthcare services
6 Aug 2026
High6 Aug 2026
Valley Kidney Specialists
Healthcare · Records not stated
Data breach exposed personal and health information of patients
6 Aug 2026
Critical6 Aug 2026
Conduent
Healthcare · 62,200,000 records
Data breach exposed 62.2 million records, third-largest US healthcare hack
6 Aug 2026
Critical6 Aug 2026
Craneware Healthcare Software
Healthcare · Records not stated
Customer and partner records stolen from hospitals
6 Aug 2026
Critical6 Aug 2026
NYC Health + Hospitals
Healthcare · 1,800,000 records
1.8M patient records and biometrics exposed
6 Aug 2026
High6 Aug 2026
Healthcare Highways
Healthcare · Records not stated
Ransomware attack on US health network provider
6 Aug 2026
High6 Aug 2026
CareCloud Health
Healthcare · 350,000 records
350K patient SSNs and payment records stolen from AWS
6 Aug 2026
Critical6 Aug 2026
Craneware Group
Healthcare · Records not stated
Significant volume stolen from US hospital billing systems
6 Aug 2026
Critical6 Aug 2026
DentaQuest Sun Life
Healthcare · Records not stated
2.6M Medicaid beneficiary records leaked
6 Aug 2026
Critical6 Aug 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M patient biometric and health records stolen
6 Aug 2026
High6 Aug 2026
ProHealth Medical Group
Healthcare · Records not stated
114GB patient data stolen in ransomware attack
6 Aug 2026
Critical6 Aug 2026
CareCloud
Healthcare · 345,000 records
345K patient records stolen including SSNs and card numbers
6 Aug 2026
Critical6 Aug 2026
Abbott Exact Sciences Legacy
Healthcare · 30,000,000 records
30M rows claimed stolen including 1M SSNs
6 Aug 2026
Critical6 Aug 2026
6 Aug 2026
High6 Aug 2026
6 Aug 2026
High5 Aug 2026
5 Aug 2026
High5 Aug 2026
Cookeville Regional Medical Center
Healthcare · 330,000 records
330K patient records compromised in ransomware
5 Aug 2026
Critical5 Aug 2026
CareCloud Health Tech
Healthcare · 350,000 records
350K patient medical and financial records exposed
5 Aug 2026
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