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.
5,314
Disclosures in the tracker, all years
2,028
Of those, indexed in 2026
76
Added in October
21
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 21 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,069 results · Healthcare disclosures. Clear filters
Critical1 Feb 2024
McLaren Health Care
Healthcare · Records not stated
Two ransomware breaches in 2023-2024 affected 3.2M+ victims; settled class-action for $14M
1 Feb 2024
Critical1 Feb 2024
TriZetto
Healthcare · 3,400,000 records
3.4 million people's health and personal data stolen in 2024 cyberattack affecting health insurance tech provider
1 Feb 2024
Critical1 Feb 2024
Change Healthcare
Healthcare · 100,000,000 records
Ransomware attack in Feb 2024 exposed data from up to 100 million people
1 Feb 2024
Critical1 Feb 2024
Viamedis / Almerys (France)
Healthcare · Records not stated
33M health insurance records stolen from two major French third-party payment providers
1 Feb 2024
Medium1 Feb 2024
Ernest Health
Healthcare · 94,000 records
94K patient records exposed in ransomware across 30 hospitals
1 Feb 2024
High31 Jan 2024
Lurie Children's Hospital
Healthcare · Records not stated
790K pediatric patient records stolen in Rhysida ransomware
31 Jan 2024
High24 Jan 2024
Ambulance Victoria
Healthcare · Records not stated
30,000+ employee records stolen by Agenda ransomware group
24 Jan 2024
Medium20 Jan 2024
20 Jan 2024
High10 Jan 2024
Montefiore Medical Center
Healthcare · 260,000 records
260K patient records stolen by insider threat employee
10 Jan 2024
Medium5 Jan 2024
5 Jan 2024
High1 Jan 2024
Wisconsin nonprofit health plan
Healthcare · Records not stated
Data breach on Jan 25, 2024 resulted in $3.5M settlement
1 Jan 2024
High1 Jan 2024
Wisconsin nonprofit health plan
Healthcare · Records not stated
Data breach affecting member data, settled for $3.5M
1 Jan 2024
Critical1 Jan 2024
TriZetto
Healthcare · Records not stated
Healthcare tech provider breach affecting over 3 million Americans; software vulnerability first disclosed 2024
1 Jan 2024
High1 Jan 2024
Xsolis
Healthcare · Records not stated
Healthcare AI vendor breach in January 2024 exposing patient records from client organizations
1 Jan 2024
High1 Jan 2024
Wisconsin healthcare payer
Healthcare · Records not stated
Data breach on January 25, 2024 exposed member information, settled for $3.5 million
1 Jan 2024
High1 Jan 2024
Wisconsin health plan (nonprofit)
Healthcare · Records not stated
Data breach on January 25, 2024 exposed member information, settled for $3.5 million
1 Jan 2024
Critical1 Jan 2024
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed sensitive health and insurance information from millions of patients
1 Jan 2024
High1 Jan 2024
Wisconsin Nonprofit Health Plan
Healthcare · Records not stated
Data breach on January 25, 2024 resulted in $3.5M settlement in class-action lawsuit
1 Jan 2024
Critical1 Jan 2024
McLaren Health Care
Healthcare · Records not stated
Two ransomware attacks in 2023 and 2024 affected 3.2 million victims; settled class-action for $14M
1 Jan 2024
High1 Jan 2024
Wisconsin Health Plan (Nonprofit)
Healthcare · Records not stated
Data breach on January 25, 2024 resulted in $3.5M settlement for class-action lawsuit
1 Jan 2024
High1 Jan 2024
Wisconsin nonprofit health plan
Healthcare · Records not stated
Data breach on Jan 25, 2024 resulted in $3.5M settlement over compromised member data
1 Jan 2024
High25 Dec 2023
Anna Jaques Hospital
Healthcare · 316,000 records
316K patient records exposed in Christmas Day ransomware
25 Dec 2023
High19 Dec 2023
St Vincent's Health Australia
Healthcare · Records not stated
Cyberattack on Australia's largest non-profit hospital network, data stolen
19 Dec 2023
High14 Dec 2023
DC Health Link
Healthcare · 48,145 records
48,145 records exposed, Citizenship statuses, Dates of birth, Email addresses, Employers and 7 more
14 Dec 2023
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