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.
5,339
Disclosures in the tracker, all years
2,052
Of those, indexed in 2026
111
Added in October
18
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 25 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,235 results · Healthcare disclosures. Clear filters
Critical31 May 2023
4M patient Medicaid records exposed
Healthcare · 95,000,000 records
4M patient Medicaid records exposed
31 May 2023
High31 May 2023
31 May 2023
Critical31 May 2023
BORN Ontario (Birth Registry)
Healthcare · Records not stated
3.4M mothers' and infants' data stolen via MOVEit, Ontario birth registry
31 May 2023
High31 May 2023
31 May 2023
High31 May 2023
Trinity Health (MOVEit)
Healthcare · 990,000 records
990K patient records exposed via MOVEit
31 May 2023
High31 May 2023
Providence Health Plan
Healthcare · Records not stated
122K member records exposed in MOVEit breach
31 May 2023
High31 May 2023
Highmark Blue Cross
Healthcare · Records not stated
300K member records exposed in MOVEit breach
31 May 2023
Critical31 May 2023
Maximus (MOVEit)
Healthcare · 95,000,000 records
11M government healthcare records exposed in MOVEit breach
31 May 2023
Critical31 May 2023
4M patient Medicaid records exposed
Healthcare · 4,000,000 records
4M patient Medicaid records exposed
31 May 2023
High22 May 2023
Murfreesboro Medical Clinic
Healthcare · 559,000 records
559K patient records exposed in data breach
22 May 2023
High10 May 2023
Scarborough Health Network
Healthcare · Records not stated
Patient data breach reported to Ontario IPC
10 May 2023
High4 May 2023
4 May 2023
Critical3 May 2023
ASL 1 Abruzzo (Italy)
Healthcare · Records not stated
Monti ransomware stole 522GB of patient data from Italian health authority
3 May 2023
Critical1 May 2023
Welltok
Healthcare · 14,760,000 records
14.76 million individuals affected by 2023 MOVEit Transfer data breach exposing patient data
1 May 2023
Medium22 Apr 2023
22 Apr 2023
Medium18 Apr 2023
18 Apr 2023
Medium17 Apr 2023
Mission Community Hospital
Healthcare · 89,000 records
89K patient records exposed in ransomware
17 Apr 2023
Critical17 Apr 2023
Point32Health / Harvard Pilgrim
Healthcare · Records not stated
2.5M member records stolen in ransomware attack
17 Apr 2023
High12 Apr 2023
Practice Resources
Healthcare · 942,000 records
942K patient records exposed in business associate breach
12 Apr 2023
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
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