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.
5,582
Disclosures in the tracker, all years
2,082
Of those, indexed in 2026
146
Added in October
21
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 31 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,552 results · Healthcare disclosures. Clear filters
Critical11 Aug 2026
CareCloud Health Software
Healthcare · 345,000 records
345K patient records stolen from EHR systems
11 Aug 2026
High11 Aug 2026
Cure Dental
Healthcare · Records not stated
Dental provider data breach exposed PII of current and former patients
11 Aug 2026
Critical11 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach exposed personal information of 1.2 million individuals
11 Aug 2026
High11 Aug 2026
Cure Dental
Healthcare · Records not stated
Dental practice data breach exposed PII of current and former patients
11 Aug 2026
High11 Aug 2026
Clover Health
Healthcare · Records not stated
Health insurer data breach disclosed; type and extent of exposed data unknown at disclosure
11 Aug 2026
Critical11 Aug 2026
AnMed Health System
Healthcare · Records not stated
83 facilities closed in ongoing ransomware attack
11 Aug 2026
Critical11 Aug 2026
CareCloud Health Platform
Healthcare · 345,000 records
345K patient SSNs and payment records stolen
11 Aug 2026
High11 Aug 2026
Cerner
Healthcare · Records not stated
Patient data breach at healthcare systems affecting Huntsville Hospital Health System
11 Aug 2026
Critical11 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach exposed over 1.2 million individuals' records
11 Aug 2026
Critical11 Aug 2026
Alcon Pharma
Healthcare · Records not stated
25M Salesforce PII records stolen by ShinyHunters
11 Aug 2026
High10 Aug 2026
Ontario Health atHome
Healthcare · Records not stated
Vendor ransomware attack exposed data, kept under wraps for months
10 Aug 2026
Critical10 Aug 2026
CareCloud Health
Healthcare · 350,000 records
350K patients: SSNs, financials, medical records stolen
10 Aug 2026
Critical10 Aug 2026
VITAS Hospice Services
Healthcare · 300,000 records
300K patient records with SSNs and medical data
10 Aug 2026
Critical10 Aug 2026
Blue Cross Blue Shield
Healthcare · Records not stated
Massive data breach; company allegedly knew about breach and delayed reporting; Montana insurance investigation
10 Aug 2026
High10 Aug 2026
Healthcare advocacy vendor cybersecurity incident
Healthcare · Records not stated
Healthcare advocacy vendor cybersecurity incident exposed employees' social security numbers
10 Aug 2026
Critical10 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack; healthcare billing and practice-management data
10 Aug 2026
Critical10 Aug 2026
AnMed Health System
Healthcare · Records not stated
US nonprofit health system data exfiltrated
10 Aug 2026
Critical10 Aug 2026
AnMed Health System
Healthcare · Records not stated
Ongoing malware attack closes 83 facilities
10 Aug 2026
High10 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen in major ransomware attack
10 Aug 2026
Critical10 Aug 2026
Navia Benefit Solutions
Healthcare · Records not stated
2.7M SSNs and health benefits records exfiltrated via API
10 Aug 2026
Critical10 Aug 2026
UnitedHealthcare
Healthcare · Records not stated
One of the largest healthcare data breaches in American history; multiple companies affected
10 Aug 2026
Critical9 Aug 2026
Unlimited Technology Systems
Healthcare · 3,800,000 records
3.8 million people impacted in healthcare software company breach
9 Aug 2026
High9 Aug 2026
Quantum Health
Healthcare · Records not stated
Healthcare advocacy vendor breach exposed employees' SSNs via New Era Technology
9 Aug 2026
Critical9 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
1.26 million patients exposed in PEAR ransomware attack on healthcare billing company
9 Aug 2026
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