Orthopaedic Institute of Western Kentucky
March 6, 2026
•[ data breach, third-party vendor, medical records ]
Orthopaedic Institute of Western Kentucky disclosed a patient data breach tied to two separate security incidents at its third-party vendor Keystone Technologies. Reporting stated one incident occurred in April 2025 and another occurred between July and August 1, 2025, and that in both cases unauthorized parties accessed files containing patient information. The disclosure indicated the potentially exposed data could include medical records, Social Security numbers, and addresses. No threat actor attribution, precise access method, or affected-patient count was provided in the brief report.
MRO Corp.
January 20, 2026
•[ data breach, third-party vendor incident, healthcare ]
DataBreaches summarized a disclosure that a data breach at third-party medical records vendor MRO Corp. exposed personal and health information of patients tied to two Deaconess Health System hospitals in Western Kentucky (Deaconess Henderson Hospital and Deaconess Union County Hospital), as well as affected clinic patients whose records were subject to release-of-information requests. The health system stated the breach did not affect Deaconess internal systems or its electronic medical records platform; the incident was contained to the ROI vendor environment. The reporting did not enumerate specific data elements in the excerpt.
Mid South Pulmonary & Sleep Specialists (MSPS)
November 17, 2025
•[ ransomware, data leak, data breach ]
Reporting on Anubis RaaS described a severe ransomware incident affecting Mid South Pulmonary & Sleep Specialists (MSPS) in Tennessee. The threat actor claimed initial access on Nov. 10, 2025, spent about a week conducting internal reconnaissance and data theft, then paralyzed the organizations network in a single night. The group claimed to have encrypted MSPSs Nutanix systems and used a wiper to delete backups, leaving MSPS unable to restore systems; the actor also claimed exfiltration of roughly 860 GB and leakage of hundreds of gigabytes containing administrative records, insurance billing files, and extensive PII/PHI. MSPS had not publicly confirmed details in the reporting, but the described impacts suggest prolonged disruption and exposure of sensitive medical data.
Central Ozarks Medical Center
November 10, 2025
•[ cyberattack, unauthorized access, data breach ]
Patients and individuals had their sensitive personal and health information exposed in a criminal cyberattack on Central Ozarks Medical Center. The breach involved unauthorized access to systems and resulted in the compromise of names, dates of birth, Social Security numbers, financial account details, medical treatment records, and health insurance information, according to investigation notices.
Doctor Alliance LLC
November 4, 2025
•[ ransomware, data leak, phi ]
Threat actor Kazu claimed theft of 353GB (?1.24M files) from Doctor Alliance LLC and demanded a $200,000 ransom; sample includes scanned patient PHI.
Vibra Hospital of Sacramento
August 30, 2025
•[ data leak, PHI ]
Attack on Vibra Hospital of Sacramentos network occurred between August 30 and September 5, 2025. The breach exposed protected health information, including medical and insurance details but no financial or Social Security data. No ransomware or encryption occurred, and no threat group has publicly claimed responsibility.
Saint Mary’s Home of Erie
August 26, 2025
•[ unauthorized access, PII, PHI ]
A forensic investigation found that an unauthorized party accessed the Saint Marys Home of Erie network between August 26 and 28, 2025. Files and folders containing resident PII and PHI may have been exposed. The incident was reported to HHS OCR for at least 501 individuals while review continues.
Visiting Nurse Association of Texas
July 17, 2025
•[ unauthorized access, email compromise, PII ]
Visiting Nurse Association of Texas identified suspicious network activity on July 17, 2025; an unauthorized actor accessed employee email accounts and potentially compromised personal and health-related data belonging to thousands of individuals, per notice and investigation.
Healthcare Interactive
July 8, 2025
•[ data leak, hacked, phi ]
Healthcare Interactive reported that hackers accessed its network between July 812, 2025 and exfiltrated files containing extensive PHI/PIIincluding names, DOBs, SSNs, contact details, insurance enrollment IDs, diagnoses, provider names, lab results, medical images, treatment plans, and possibly claims datawith the breach detected around July 22; the attack vector wasnt disclosed but regulators were notified.
Ericsson
April 17, 2025
•[ unauthorized access, data security incident, PII ]
Ericsson disclosed a data security incident at a service provider. The provider detected unauthorized access on 04/28/2025 and later determined files may have been accessed between 04/17/2025 and 04/22/2025. Exposed data varied by person and included names and Social Security numbers, with additional filings indicating dates of birth, drivers license/government ID numbers, financial information, and medical information. The review was completed on 02/23/2026, and a Maine filing referenced 15,661 impacted employees and customers; no group publicly claimed responsibility at the time of reporting.
The Children’s Center of Hamden
December 28, 2024
•[ data breach, data theft, unauthorized network activity ]
In late December 2024, The Childrens Center of Hamden detected unauthorized network activity later linked to the criminal group INC. The attack resulted in theft of sensitive patient and staff information including SSNs and medical records. No encryption reported. Public notice issued August 28 2025.
ARC Community Services
November 4, 2024
•[ unauthorized activity, data breach, protected health information ]
ARC Community Services disclosed it became aware of unauthorized activity in its network on November 4, 2024 and initiated incident response actions, including taking systems offline until operations could be safely restored. During the ensuing investigation and data review, ARC determined that files containing protected health information (PHI) were taken from its network. The potentially affected PHI varies by individual but may include contact information (name/address), date of birth, medical record number, health information, drivers license number, and financial account information.
Central Kentucky Radiology
October 16, 2024
•[ data leak, healthcare, PII ]
Unauthorized actor accessed CKRs network Oct 1618 2024 and copied files; ~167k people impacted; notifications issued mid-June 2025; data stolen from Lexington-based servers; no encryption or operational shutdown confirmed.
OCAT, LLC dba Evoke Wellness at Hilliard
July 7, 2024
•[ insider threat, data breach, healthcare ]
DataBreaches reported that Evoke Wellness at Hilliard updated its breach reporting about an insider-related patient-data incident. The post notes law enforcement investigated a former employee accused of misusing access to obtain patient information and sell or misuse it, with the employee working there from 2021 to July 2024 and the case surfacing after police found suspicious documents in 2024. Evokes amended patient notice listed many possible exposed data elements (including SSNs and detailed treatment/insurance information) and the post highlights inconsistencies in public filings about discovery dates and affected counts.
Maryhaven, Inc.
May 30, 2024
•[ data leak, healthcare, unauthorized access ]
Maryhaven, a behavioral health and addiction treatment provider in Ohio, detected unauthorized access to its systems on June 1 2024. An unknown actor accessed and exfiltrated patient and employee PHI/PII data (~7,000 records). No encryption or operational disruption occurred. Disclosure issued April 11 2025 through Cyberscout/TransUnion.
