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.
4,963 results · Healthcare disclosures. Clear filters
High14 Aug 2026
Philips Healthcare Tech
Healthcare · Records not stated
13.5GB blueprints and diagrams exfiltrated by Cl0p
14 Aug 2026
High14 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient health information compromised in 2025 breach affecting hospital system
14 Aug 2026
High14 Aug 2026
NHS
Healthcare · 900,000 records
STILL, NHS? Martin Bagot reports: The NHS has admitted a data breach by sending patients’ personal information over pager devices. A BBC investigation found sensitive medical data of transplant patients was routinely…
14 Aug 2026
Critical13 Aug 2026
Unnamed medical billing company
Healthcare · 1,300,000 records
Ransomware attack exposing protected health data on 1.3 million people
13 Aug 2026
High13 Aug 2026
Personal and medical information including SSNs
Healthcare · Records not stated
Personal and medical information including SSNs exposed in data breach
13 Aug 2026
Critical13 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company data breach affecting 1.2 million individuals with personal information exposed
13 Aug 2026
Critical13 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised in 2025 Cerner breach, ongoing class action lawsuit
13 Aug 2026
High13 Aug 2026
Clover Health
Healthcare · Records not stated
Data breach disclosed in securities filing; type and extent of exposed data not yet determined
13 Aug 2026
High13 Aug 2026
WellPoint Texas
Healthcare · Records not stated
Data breach exposed personal information; class action investigation launched
13 Aug 2026
Critical13 Aug 2026
Polish Patient Records Platform
Healthcare · Records not stated
19M medical records stolen in cyberattack
13 Aug 2026
Critical13 Aug 2026
Blue Cross-Blue Shield
Healthcare · Records not stated
Massive data breach; company allegedly knew about breach and delayed reporting
13 Aug 2026
Critical13 Aug 2026
Cerner (Huntsville Hospital)
Healthcare · Records not stated
Patient data compromised in 2025 breach affecting Huntsville Hospital Health System
13 Aug 2026
Critical13 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen in ransomware attack affecting NHS trust
13 Aug 2026
Critical13 Aug 2026
Poland National Patient Records
Healthcare · Records not stated
19M medical records stolen in cyberattack
13 Aug 2026
High13 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
2025 Cerner breach resulted in stolen patient data; hospital faces class action lawsuit for negligence
13 Aug 2026
Critical13 Aug 2026
MyDr Poland Medical Records
Healthcare · 19,000,000 records
19M patient records stolen from 12K clinics
13 Aug 2026
High13 Aug 2026
WellPoint Texas
Healthcare · Records not stated
Data breach exposed personal information from WellPoint Texas health insurance operations
13 Aug 2026
High13 Aug 2026
Organisation not named
Healthcare · 900,000 records
The disclosure as indexed does not name the organisation.
Thousands of NHS patient records stolen during major ransomware attack
13 Aug 2026
High13 Aug 2026
Munson Healthcare
Healthcare · 120,000 records
120,000 patients informed of data compromise in breach
13 Aug 2026
High13 Aug 2026
Craneware Healthcare Finance
Healthcare · Records not stated
Unauthorized access to subset of data environment
13 Aug 2026
Critical13 Aug 2026
Change Healthcare
Healthcare · 100,000,000 records
2024 cyberattack exposed data affecting multiple healthcare providers including IU Health
13 Aug 2026
Critical13 Aug 2026
Polish Medical Records Platform
Healthcare · 19,000,000 records
19M patient records stolen in cyberattack
13 Aug 2026
Critical13 Aug 2026
DentaQuest Benefits
Healthcare · Records not stated
15M health records stolen in spring breach
13 Aug 2026
Critical13 Aug 2026
MyDr Poland
Healthcare · 19,000,000 records
19M patient records stolen from medical platform
13 Aug 2026
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