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
High13 Aug 2026
CareCloud
Healthcare · 345,000 records
Cyberattack exposed data of 345,000 patients from EHR and RCM provider
13 Aug 2026
Critical13 Aug 2026
Marianne Kolbasuk McGee
Healthcare · Records not stated
Marianne Kolbasuk McGee reports: A Canadian hospital is dealing with a ransomware attack on its facility management systems that has affected the building’s doors and heating, ventilation and air conditioning…
13 Aug 2026
Critical13 Aug 2026
One Medical
Healthcare · Records not stated
8.8TB stolen from legacy systems by ShinyHunters
13 Aug 2026
Critical12 Aug 2026
Navia Benefit Solutions
Healthcare · Records not stated
2.7M SSNs and health plan data stolen
12 Aug 2026
Critical12 Aug 2026
MCBS Medical
Healthcare · 1,260,000 records
Medical billing company breach exposed 1.26 million patients in PEAR ransomware attack
12 Aug 2026
Critical12 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company suffered breach affecting 1.2 million individuals' data
12 Aug 2026
Critical12 Aug 2026
12 Aug 2026
Critical12 Aug 2026
Organisation not named
Healthcare · 1,260,000 records
The disclosure as indexed does not name the organisation.
Healthcare billing company; 1.26 million patients exposed in PEAR ransomware attack
12 Aug 2026
Critical12 Aug 2026
NYC Health and Hospitals
Healthcare · 1,800,000 records
1.8M patient records and biometric data stolen
12 Aug 2026
High12 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Thousands of patient records stolen during major ransomware attack disrupting healthcare
12 Aug 2026
Critical12 Aug 2026
Indiana University Health
Healthcare · Records not stated
Patient data exfiltrated by Storm threat actor
12 Aug 2026
High12 Aug 2026
Munson Healthcare
Healthcare · 120,000 records
Data breach exposed 120,000 patients' information
12 Aug 2026
High12 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Third-party vendor breach compromised patient data at Huntsville Hospital Health System, leading to class action lawsuit
12 Aug 2026
Critical12 Aug 2026
MCBS
Healthcare · 1,200,000 records
Medical business management company breach exposed over 1.2 million individuals' data
12 Aug 2026
High12 Aug 2026
VITAS Hospice Services
Healthcare · 319,000 records
319K patient records accessed via vendor account
12 Aug 2026
Critical12 Aug 2026
Blue Cross-Blue Shield
Healthcare · Records not stated
Massive data breach; Montana insurance commissioner investigation announced for failure to report breach promptly.
12 Aug 2026
High12 Aug 2026
Craneware
Healthcare · Records not stated
Hospital software vendor supply-chain attack exposed healthcare customer data
12 Aug 2026
High12 Aug 2026
Cure Dental
Healthcare · Records not stated
Dental provider data breach exposed personally identifiable information of current and former patients
12 Aug 2026
High12 Aug 2026
Clover Health
Healthcare · Records not stated
Health insurer data breach disclosed in securities filing; data type and impact unknown
12 Aug 2026
Critical12 Aug 2026
NYC Health Hospitals
Healthcare · 1,800,000 records
1.8M patient biometrics and SSNs exfiltrated
12 Aug 2026
Critical12 Aug 2026
12 Aug 2026
High12 Aug 2026
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised through vendor breach, third-party data exposure
12 Aug 2026
High12 Aug 2026
Adam Haertle
Healthcare · Records not stated
Adam Haertle reports: MyDr has just announced that it is investigating a serious security incident on its network. The alleged perpetrators of this incident contacted us earlier and claimed to have access to patient…
12 Aug 2026
High11 Aug 2026
Clover Health
Healthcare · Records not stated
Health insurer data breach with unknown data type and record count exposed
11 Aug 2026
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