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.
5,305
Disclosures in the tracker, all years
2,019
Of those, indexed in 2026
66
Added in October
18
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 19 Oct 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
5,016 results · Healthcare disclosures. Clear filters
High1 Sep 2025
MedicSolution
Healthcare · Records not stated
KillSec ransomware group attacked healthcare software solutions provider in Brazil
1 Sep 2025
High1 Sep 2025
Organisation not named
Healthcare · 13,000 records
The disclosure as indexed does not name the organisation.
Patient records from 13,000 patients in New Jersey exposed via cyberattack on law firm
1 Sep 2025
High1 Sep 2025
KillSec attack on MedicSolution
Healthcare · Records not stated
KillSec ransomware group attacked MedicSolution, a healthcare software solutions provider in Brazil
1 Sep 2025
High1 Sep 2025
MedicSolution
Healthcare · Records not stated
KillSec ransomware attack on healthcare software solutions provider
1 Sep 2025
High1 Aug 2025
Cerner
Healthcare · Records not stated
Unauthorized third party accessed health records; breach affected Huntsville Hospital and other health systems
1 Aug 2025
Critical1 Aug 2025
Organisation not named
Healthcare · 1,150,000 records
The disclosure as indexed does not name the organisation.
Ransomware attack in August 2025 affected 1.15 million individuals
1 Aug 2025
High1 Aug 2025
Cerner (Huntsville Hospital)
Healthcare · Records not stated
Unauthorized third party accessed patient electronic health records via vendor system
1 Aug 2025
High1 Aug 2025
Cerner (Third-party vendor)
Healthcare · Records not stated
Patient data breach affecting Huntsville Hospital and other health systems
1 Aug 2025
High1 Aug 2025
Huntsville Hospital
Healthcare · Records not stated
Patient health information compromised through third-party vendor Cerner breach in August 2025
1 Aug 2025
High1 Aug 2025
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Patient data compromised through third-party vendor, unauthorized access by third party
1 Aug 2025
High1 Aug 2025
Cerner (via Huntsville Hospital)
Healthcare · Records not stated
Patient health information compromised through third-party vendor breach affecting hospital systems
1 Aug 2025
High1 Aug 2025
Organisation not named
Healthcare · Records not stated
The disclosure as indexed does not name the organisation.
Electronic health record system breach affecting Huntsville Hospital patients
1 Aug 2025
High1 Aug 2025
Cerner (HHS vendor)
Healthcare · Records not stated
Unauthorized third party breached electronic health record system affecting hospital patients
1 Aug 2025
High1 Aug 2025
Cerner (Huntsville Hospital vendor)
Healthcare · Records not stated
EHR vendor breach affecting hospital patient records via unauthorized third party access
1 Aug 2025
High1 Aug 2025
Cerner (EHR Vendor)
Healthcare · Records not stated
Huntsville Hospital vendor breach affecting patient records via unauthorized third-party access
1 Aug 2025
High1 Aug 2025
Huntsville Hospital Health System
Healthcare · Records not stated
Third-party vendor data breach exposed patient information at hospital facilities
1 Aug 2025
High1 Aug 2025
Cerner
Healthcare · Records not stated
EHR vendor breach exposed patient data at Huntsville Hospital Health System and other healthcare systems.
1 Aug 2025
High1 Aug 2025
Cerner/Huntsville Hospital
Healthcare · Records not stated
EHR vendor breach notified healthcare systems of unauthorized third-party access
1 Aug 2025
Medium13 Jul 2025
Omnicuris
Healthcare · 215,298 records
215,298 records exposed, Email addresses, Geographic locations, Names, Phone numbers
13 Jul 2025
Critical1 Jul 2025
MCBS
Healthcare · 1,200,000 records
Medical business management company breach affected 1.2 million individuals with personal data exposure
1 Jul 2025
High1 Jul 2025
Tieu Dental Corporation
Healthcare · Records not stated
July 2025 hacking-related data breach affecting dental patients in California
1 Jul 2025
Critical1 Jun 2025
Medical Billing Company
Healthcare · 1,300,000 records
Ransomware attack exposed sensitive protected health data on 1.3 million people to dark web in 2025
1 Jun 2025
Critical1 Jun 2025
Medical Billing Company (unnamed)
Healthcare · 1,300,000 records
Ransomware attack exposed sensitive protected health data on 1.3 million people
1 Jun 2025
Critical1 Jun 2025
Medical Billing Company
Healthcare · 1,300,000 records
1.3 million people's protected health data exposed in 2025 ransomware attack, leaked to dark web
1 Jun 2025
Were you affected?