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.
5,291
Disclosures in the tracker, all years
2,004
Of those, indexed in 2026
49
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 17 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
4,911 results · Healthcare disclosures. Clear filters
High17 Sep 2026
Veradigm
Healthcare · Records not stated
Electronic health record company suffered vendor breach exposing customer data
17 Sep 2026
Critical17 Sep 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach exposed 1.2 million individuals' personal data
17 Sep 2026
Critical17 Sep 2026
TriZetto Provider Solutions
Healthcare · 3,400,000 records
PHI of 3.4M individuals exposed via unauthorized IT environment access
17 Sep 2026
Critical16 Sep 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Mike Stimpson reports: Some patient services may be affected as the general hospital in Nipigon responds to what it describes as a “cyber security incident.” An incident involving ransomware affected information…
16 Sep 2026
High16 Sep 2026
Woodfords Family Services
Healthcare · Records not stated
Ransomware attack exposing patient and family data
16 Sep 2026
High16 Sep 2026
University of Hawaiʻi Cancer Center
Healthcare · Records not stated
Data leak following ransomware attack
16 Sep 2026
Critical16 Sep 2026
Conduent
Healthcare · Records not stated
Ransomware breach stealing 8TB of files from document processing company affecting healthcare sector
16 Sep 2026
Critical16 Sep 2026
Welltok
Healthcare · 14,760,000 records
MOVEit Transfer breach affecting 14.76 million individuals in healthcare/patient data
16 Sep 2026
High15 Sep 2026
Woodfords Family Services
Healthcare · Records not stated
2024 ransomware attack affecting patients and families
15 Sep 2026
Critical15 Sep 2026
ApolloMD
Healthcare · 626,000 records
Data breach impacted 626,000 individuals
15 Sep 2026
Critical15 Sep 2026
Blue Shield of California
Healthcare · 4,700,000 records
Data breach impacted 4.7 million people
15 Sep 2026
High15 Sep 2026
Covenant Health
Healthcare · 480,000 records
Data breach impacted nearly 480,000 patients' medical and personal information
15 Sep 2026
High15 Sep 2026
University of Hawaiʻi Cancer Center
Healthcare · Records not stated
Data leak following ransomware attack exposed patient medical records
15 Sep 2026
Critical15 Sep 2026
Yale New Haven Health
Healthcare · 5,500,000 records
Data breach affected 5.5 million patients' medical and personal information
15 Sep 2026
Critical15 Sep 2026
MCBS
Healthcare · 1,200,000 records
Data breach affected 1.2 million individuals' medical business information
15 Sep 2026
Critical15 Sep 2026
Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed 1.3 million individuals' protected health data
15 Sep 2026
Critical15 Sep 2026
Change Healthcare
Healthcare · 100,000,000 records
2024 ransomware attack exposed sensitive healthcare data
15 Sep 2026
High14 Sep 2026
Centers Laboratory
Healthcare · 540,000 records
Data breach affects 540,000 individuals
14 Sep 2026
High14 Sep 2026
MCBS
Healthcare · 1,200,000 records
Data breach affects 1.2 million individuals
14 Sep 2026
High14 Sep 2026
Covenant Health
Healthcare · 480,000 records
Qilin ransomware attack impacted nearly 480,000 individuals
14 Sep 2026
High14 Sep 2026
Ransomware attack resulted in data
Healthcare · Records not stated
Ransomware attack resulted in data leak of patient information
14 Sep 2026
High14 Sep 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Ransomware attack affecting government-run network of healthcare testing laboratories
14 Sep 2026
High14 Sep 2026
Bedfordshire Hospital
Healthcare · Records not stated
Patient names, NHS numbers, and test results compromised in cyber attack
14 Sep 2026
Critical14 Sep 2026
UnitedHealthcare
Healthcare · Records not stated
2024 cyberattack exposed sensitive data from millions of patients including health and insurance information
14 Sep 2026
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