Ransomware group insomnia hits United Medical Doctors
United Medical Doctors — a healthcare target operating in US has been listed by the insomnia ransomware group on 2026-03-31. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.
Incident Report
| Target Organization | United Medical Doctors |
|---|---|
| Threat Group | insomnia |
| Summary | 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 improvement, outpatient surgery, clinical research. |
| Date of Breach | 2026-03-31 |
| Discovery Date | 2026-04-09 |
| Region | US |
| Target Domain | www.unitedmd.com |
| Business Sector | Healthcare |
| Severity | MEDIUM |
Claim by insomnia
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 improvement, outpatient surgery, clinical research.
Posted by the insomnia threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.
Sources
Victim website
www.unitedmd.com
Leak post (onion / Tor)
http://i62huw7ve22rpyw6lnq3kmfump2dmsg4xpveec3ere73njwatrz74gad.onion/Company/UnitedMD/
Open this URL in Tor Browser. Browsing leak sites carries real risk — view passively, never click further.
Disclaimer
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