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
Critical22 Sep 2026
Welltok
Healthcare · 14,760,000 records
MOVEit Transfer breach exposed 14.76 million individuals' healthcare data at Denver-based patient health company
22 Sep 2026
Critical22 Sep 2026
Ransomware attack
Healthcare · 1,200,000 records
Ransomware attack exposed personal data of 1.2 million individuals
22 Sep 2026
Critical22 Sep 2026
MCBS
Healthcare · 1,200,000 records
Data breach at Atlanta-based medical business management company affected 1.2 million individuals
22 Sep 2026
Critical22 Sep 2026
Medical Billing Company (unnamed)
Healthcare · 1,300,000 records
Ransomware attack exposed protected health data on 1.3 million people to dark web
22 Sep 2026
High22 Sep 2026
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party data breach exposed patient information at multiple hospital facilities
22 Sep 2026
High22 Sep 2026
Veradigm
Healthcare · Records not stated
Third party data breach; hackers threatened to publish exposed data
22 Sep 2026
High21 Sep 2026
Woodfords Family Services
Healthcare · Records not stated
Ransomware attack affecting patients and families
21 Sep 2026
Critical21 Sep 2026
Covenant Health
Healthcare · 480,000 records
Data breach impacting nearly 480,000 people
21 Sep 2026
Critical21 Sep 2026
CHC
Healthcare · 1,000,000 records
US healthcare provider breach impacting 1 million patients
21 Sep 2026
High21 Sep 2026
Novocure
Healthcare · Records not stated
Data breach affecting more than 1,400 cancer patients
21 Sep 2026
Critical21 Sep 2026
Ransomware attack
Healthcare · 1,200,000 records
Ransomware attack exposed personal data of 1.2 million individuals
21 Sep 2026
High21 Sep 2026
Essex NHS Trust
Healthcare · 900,000 records
NHS trust breach: thousands of patient records stolen in cyber attack, disclosed 6+ months after notification
21 Sep 2026
Critical21 Sep 2026
Veradigm
Healthcare · Records not stated
Electronic health records company: hackers infiltrated vendor systems and stole customer health data
21 Sep 2026
Critical21 Sep 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach exposed personal data of 1.2 million individuals
21 Sep 2026
Critical18 Sep 2026
ApolloMD
Healthcare · 626,000 records
626,000 individuals impacted by data breach
18 Sep 2026
Critical18 Sep 2026
McLaren Health Care
Healthcare · Records not stated
740,000+ records stolen in ransomware attack
18 Sep 2026
Critical18 Sep 2026
Welltok
Healthcare · 14,760,000 records
14.76 million individuals affected by MOVEit Transfer data breach in 2023
18 Sep 2026
Critical18 Sep 2026
MCBS
Healthcare · 1,200,000 records
Atlanta-based medical business management company data breach affecting 1.2 million individuals
18 Sep 2026
High18 Sep 2026
Highland Oncology Group
Healthcare · Records not stated
2025 ransomware attack on Arkansas-based cancer care practice, litigation settled
18 Sep 2026
Critical18 Sep 2026
Trizetto Provider Solutions
Healthcare · 3,400,000 records
Unauthorized IT environment access exposed PHI of 3.4 million individuals
18 Sep 2026
Critical17 Sep 2026
ApolloMD
Healthcare · 626,000 records
Data breach impacting 626,000 individuals
17 Sep 2026
Critical17 Sep 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
South African government healthcare lab network impacted by ransomware attack affecting laboratory services
17 Sep 2026
High17 Sep 2026
CommonSpirit Health
Healthcare · 19,027 records
Data breach exposed medical and personal data of 19,027 individuals
17 Sep 2026
Critical17 Sep 2026
McLaren Health Care
Healthcare · 3,200,000 records
Ransomware attacks in 2023 and 2024 exposed 3.2 million patient records
17 Sep 2026
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