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.
5,383
Disclosures in the tracker, all years
2,096
Of those, indexed in 2026
17
Added in November
28
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 4 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,768 results · Healthcare disclosures. Clear filters
Medium10 Apr 2023
Advocate Health Care
Healthcare · 73,000 records
73K patient records exposed in 2023 incident
10 Apr 2023
High10 Apr 2023
Dental Health Management Solutions
Healthcare · 500,000 records
500K patient records exposed
10 Apr 2023
Critical6 Apr 2023
Enzo Clinical Labs
Healthcare · 2,470,000 records
2.47M patient records exposed in April 2023 ransomware
6 Apr 2023
Critical6 Apr 2023
Enzo Biochem
Healthcare · 2,470,000 records
2.47M patient test results and SSNs exposed in ransomware
6 Apr 2023
Medium5 Apr 2023
Sunnybrook Hospital (Toronto)
Healthcare · Records not stated
Research data exposed via third-party vendor
5 Apr 2023
Critical5 Apr 2023
Apria Healthcare
Healthcare · 1,870,000 records
1.87M patient records exposed in unauthorized access over 2 years
5 Apr 2023
Medium3 Apr 2023
3 Apr 2023
Critical1 Apr 2023
WebTPA Employer Services
Healthcare · 2,400,000 records
Medical claims administrator hacked in April 2023, 2.4 million individuals notified of exposure
1 Apr 2023
High22 Mar 2023
Pediatric Associates
Healthcare · 580,000 records
580K patient records exposed in BianLian ransomware
22 Mar 2023
High15 Mar 2023
Alberta Health Services
Healthcare · Records not stated
Employee impersonation led to patient data access
15 Mar 2023
High14 Mar 2023
14 Mar 2023
Critical14 Mar 2023
PharMerica
Healthcare · 5,800,000 records
5.8M patient records stolen including SSNs and medication data
14 Mar 2023
High10 Mar 2023
Carolina Behavioral Health Alliance
Healthcare · Records not stated
131K member records exposed
10 Mar 2023
Medium7 Mar 2023
7 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
Critical6 Mar 2023
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient genomic data published after hospital refused EUR 4.5M ransom
6 Mar 2023
Critical6 Mar 2023
8.9M patient records exposed in LockBit ransomware attack
Healthcare · 8,900,000 records
8.9M patient records exposed in LockBit ransomware attack
6 Mar 2023
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