Disclosure tracker › Healthcare disclosures
Intelligence · Disclosure tracker
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.
5,299
Disclosures in the tracker, all years
2,012
Of those, indexed in 2026
58
Added in October
14
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.
4,964 results · Healthcare disclosures. Clear filters
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach exposed personal and health records of approximately 46,666 patients.
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
De-identified health records of 500,000+ Britons offered for sale on Chinese website
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Ransomware attack disclosed affecting senior care provider
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Ransomware attack disclosed affecting senior care provider in California
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack, data security incident disclosed
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack, data security incident disclosed
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach affected 46,666 patients, exposing personal and health information
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website (Alibaba)
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website Alibaba
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach exposed personal and health information of 46,666 patients
1 Apr 2026
High1 Apr 2026
Signature Healthcare Brockton Hospital
Healthcare · Records not stated
Ransomware cyberattack causing system downtime; clinics offline for two weeks
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
46,666 patients' personal and health information exposed
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000 Britons offered for sale on Chinese website
1 Apr 2026
High1 Apr 2026
Legend Senior Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack disclosing data security incident
1 Apr 2026
High1 Apr 2026
Windward Life Care
Healthcare · Records not stated
Senior care provider affected by ransomware attack disclosing data security incident
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
Data breach affected 46,666 patients exposing personal and health records
1 Apr 2026
High1 Apr 2026
Heart South Cardiovascular Group
Healthcare · 46,666 records
46,666 patients affected with personal and health records exposed
1 Apr 2026
Critical1 Apr 2026
Medtronic
Healthcare · 9,000,000 records
Data hack exposed over 9 million client records according to customer class action filing
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Health records of 500,000 Britons offered for sale on Chinese website (Alibaba)
1 Apr 2026
Critical1 Apr 2026
UK Biobank
Healthcare · Records not stated
Private health records of 500,000+ Britons offered for sale on Chinese website
1 Apr 2026
High1 Apr 2026
Sandhills Medical Foundation
Healthcare · 170,000 records
170,000 individuals affected in ransomware breach of South Carolina healthcare provider
1 Apr 2026
Critical1 Apr 2026
UK BioBank / Alibaba
Healthcare · Records not stated
500,000 Britons' private health records offered for sale on Chinese website; de-identified data advertised
1 Apr 2026
High1 Apr 2026
Ransomware attack affected 169,000 patients across two facilities
Healthcare · 169,000 records
Ransomware attack affected 169,000 patients across two facilities
1 Apr 2026
High1 Apr 2026
SISVISA (Brazil)
Healthcare · Records not stated
102,215 Brazilian health surveillance records leaked including IDs and tax data
1 Apr 2026
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