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.
5,292
Disclosures in the tracker, all years
2,005
Of those, indexed in 2026
50
Added in October
9
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 18 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
High1 Aug 2026
Legend Senior Care
Healthcare · Records not stated
Ransomware attack disclosed; affected senior care provider data
1 Aug 2026
High1 Aug 2026
Windward Life Care
Healthcare · Records not stated
Ransomware attack disclosed; affected senior care provider data
1 Aug 2026
Critical1 Aug 2026
Conduent Healthcare Systems
Healthcare · Records not stated
62M SSNs and medical records exposed
1 Aug 2026
Critical1 Aug 2026
Medical Computer Business Services
Healthcare · 1,300,000 records
1.3M patient health records leaked to dark web
1 Aug 2026
High1 Aug 2026
Years-long data breach of residents' private health-related information
Healthcare · Records not stated
Years-long data breach of residents' private health-related information
1 Aug 2026
High1 Aug 2026
Synnovis
Healthcare · 900,000 records
Ransomware attack on NHS trust in Essex stole thousands of patient records during major cyberattack
1 Aug 2026
High1 Aug 2026
Legend Senior Care
Healthcare · Records not stated
Ransomware attack disclosed; senior care provider data affected
1 Aug 2026
High1 Aug 2026
Windward Life Care
Healthcare · Records not stated
Ransomware attack disclosed; senior care provider data affected
1 Aug 2026
High1 Aug 2026
Thousands of NHS patient records
Healthcare · 900,000 records
Thousands of NHS patient records confirmed stolen during major ransomware cyberattack
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
2025 network breach exposed sensitive healthcare billing data affecting 1.26 million people
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen in major ransomware attack disrupting healthcare services
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
High1 Aug 2026
Synnovis NHS Trust
Healthcare · 900,000 records
Ransomware attack stole thousands of patient records from Essex NHS trust
1 Aug 2026
High1 Aug 2026
Sandhills Medical Foundation
Healthcare · 170,000 records
Ransomware breach affected approximately 170,000 individuals in South Carolina
1 Aug 2026
Critical1 Aug 2026
Organisation not named
Healthcare · 1,200,000 records
The disclosure as indexed does not name the organisation.
2025 ransomware attack exposed personal data of 1.2 million individuals
1 Aug 2026
High1 Aug 2026
Law firm (New Jersey)
Healthcare · Records not stated
13K hospital patient records exposed in cyberattack
1 Aug 2026
High1 Aug 2026
Essex NHS Trust
Healthcare · 900,000 records
Thousands of patient records stolen in cyber attack, disclosed 6+ months after notification
1 Aug 2026
Critical1 Aug 2026
Abbott Exact Sciences
Healthcare · 30,000,000 records
30M patient records stolen via vishing attack
1 Aug 2026
High1 Aug 2026
Unlimited Technology Systems
Healthcare · 442,000 records
442K patient records exposed in ransomware attack
1 Aug 2026
Critical1 Aug 2026
1 Aug 2026
Critical1 Aug 2026
Cardiovascular Institute New England
Healthcare · Records not stated
Full medical and financial records confirmed exposed
1 Aug 2026
Critical1 Aug 2026
Craneware Healthcare Billing
Healthcare · Records not stated
Patient and customer data stolen from 12K US facilities
1 Aug 2026
High1 Aug 2026
Cardiovascular Institute NE
Healthcare · Records not stated
SSNs and patient medical records leaked
1 Aug 2026
High1 Aug 2026
1 Aug 2026
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