Ransomware victim disclosure
← All victimsUnited Medical Doctors
listed as *****d **d**** ****o** · Claimed by insomnia · listed 2 months ago
Status timeline
- Listed
Apr 2, 2026
- Data leaked
At a glance
About the victim
AI dossier — public-source company profileUnited Medical Doctors (UMD) is an independent multi-specialty medical-surgical group operating 70+ locations across Southern California, covering 40+ specialties. The organization focuses on high-quality, compassionate outpatient care, patient satisfaction, and clinical research. They also conduct outpatient surgery and process improvement initiatives.
- Industry
- Multi-Specialty Outpatient Medical & Surgical Group
- Address
- Murrieta, California, USA
- Employees
- 201-500
Attack summary
Severity: critical — Confirmed data publication by ransomware group against a large multi-specialty medical-surgical group with 201-500 employees and 70+ locations, strongly indicating exfiltration of regulated patient health information (PHI/PII) at significant scale, which falls under HIPAA-regulated data.The Insomnia ransomware group claims to have compromised United Medical Doctors and has published the data (disclosed status: data_published), indicating confirmed exfiltration of data from a large multi-specialty medical group with hundreds of employees and patients across 70+ locations.
Data the group says was taken
AI dossier — extracted from the leak post- Patient medical records
- Personal identifiable information (PII)
- Clinical research data
- Employee records
- Financial and billing records
- Insurance information
What the group claims
Functions as a comprehensive healthcare ecosystem—combining clinical care, surgical services, research innovation, and workforce development—all under one organization dedicated to improving community health in California
The leak post
captured from the group's siteInsomnia Human Verification What is 1 + 1 = ? Submit Nephrology Associates Hospitals & Physicians Clinics Nephrology Associates, PA is a leading central Arkansas nephrology practice with seven highly trained physicians across seven locations. They provide compassionate kidney care, accept all insurances, and aim to create a welcoming environment for patients. Website: www.arnapa.com Revenue: $5 million Employees: 11-50 Location: Little Rock, Arkansas, USA Notified: 2026-4-6 METO Systems Industrial Machinery & Equipment METO Systems designs and manufactures stainless-steel industrial material‑handling equipment for regulated industries. Products include lifts, blenders, transporters, and docking systems, they offer installation, training, customization, and support. Website: www.metosystems.com Revenue: $6 million Employees: 11-50 Location: Parsippany, New Jersey, USA Notified: 2026-3-31 United Medical Doctors Hospitals & Physicians Clinics United Medical Doctors (UMD) is an independent multi‑specialty medical‑surgical group with 70+ Southern California locations and 40+ specialties. They focus on high‑quality, compassionate care, patient satisfaction, process improvemen…
Sources
Source
Indexed 2 months agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
