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.
5,583
Disclosures in the tracker, all years
2,083
Of those, indexed in 2026
147
Added in October
22
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
High5 Aug 2026
Cookeville Regional Medical Center
Healthcare · 330,000 records
330K patient records exposed in ransomware attack
5 Aug 2026
High5 Aug 2026
Organisation not named
Healthcare · 102,215 records
The disclosure as indexed does not name the organisation.
Brazil's SISVISA health surveillance system left 102,215 files totaling 79GB open online, including tax IDs and identity documents, without password protection.
5 Aug 2026
Critical2 Aug 2026
Medical billing firm breach
Healthcare · 1,260,000 records
Medical billing firm breach exposed sensitive data of 1.26 million people in 2025
2 Aug 2026
High2 Aug 2026
Partnered Health (Australia)
Healthcare · Records not stated
Personal information and medical details from 21 clinics stolen in cyber-attack
2 Aug 2026
Critical2 Aug 2026
Medical Billing Company
Healthcare · 1,300,000 records
2025 ransomware attack exposed protected health data on 1.3 million people to dark web
2 Aug 2026
High2 Aug 2026
Amgen
Healthcare · Records not stated
Cloud data breach exposed patient health information and proprietary corporate data.
2 Aug 2026
Critical2 Aug 2026
1.2M individuals' personal data exposed in ransomware attack
Healthcare · 1,200,000 records
1.2M individuals' personal data exposed in ransomware attack
2 Aug 2026
High2 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 disrupting healthcare
2 Aug 2026
Critical2 Aug 2026
Amgen
Healthcare · Records not stated
Cloud data breach exposed patient health records and proprietary corporate information
2 Aug 2026
Critical2 Aug 2026
Healthcare billing firm network breach
Healthcare · 1,260,000 records
Healthcare billing firm network breach exposed sensitive data affecting 1.26 million people
2 Aug 2026
Critical2 Aug 2026
TriZetto (Healthcare Tech)
Healthcare · Records not stated
2024 breach affecting more than 3 million Americans' healthcare data
2 Aug 2026
High2 Aug 2026
Huntsville Hospital
Healthcare · Records not stated
Data breach compromises personal health information of hospital system patients
2 Aug 2026
Critical1 Aug 2026
CareCloud
Healthcare · 3,750,000 records
Data breach affecting 3.75 million individuals, based on breach notifications filed with state regulators.
1 Aug 2026
High1 Aug 2026
AnMed Health
Healthcare · Records not stated
Cyberattack forced closure of 10 facilities, health system operating at limited capacity
1 Aug 2026
High1 Aug 2026
AnMed Health System
Healthcare · Records not stated
Cyberattack forced closure of 10 facilities, prolonged recovery times impacting healthcare operations
1 Aug 2026
Critical1 Aug 2026
Aesto Health
Healthcare · 9,500,000 records
Data breach affects 9.5 million patients; Birmingham, Alabama healthcare technology company
1 Aug 2026
Critical1 Aug 2026
Unlimited Technology Systems
Healthcare · 3,800,000 records
Data breach exposed approximately 3.8 million patient records; Ohio-based revenue cycle vendor
1 Aug 2026
High1 Aug 2026
AnMed
Healthcare · Records not stated
Cyberattack on nonprofit health system forced facility closures and limited operations
1 Aug 2026
High1 Aug 2026
AnMed Health System
Healthcare · Records not stated
Cyberattack forced 10 healthcare facilities to remain closed, prolonged recovery times reported
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Unauthorized access to healthcare systems, patient data theft by Shiny Hunters
1 Aug 2026
Critical1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment, stole patient health data and proprietary company data
1 Aug 2026
High1 Aug 2026
AnMed Health
Healthcare · Records not stated
Cyberattack on nonprofit health system forced facility closures and prolonged recovery operations
1 Aug 2026
Critical1 Aug 2026
McKesson
Healthcare · Records not stated
Unauthorized access to cloud environment; ShinyHunters claimed patient data theft
1 Aug 2026
Critical1 Aug 2026
Amgen
Healthcare · Records not stated
Hackers accessed cloud environment stealing patient health data and IP
1 Aug 2026
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