Arthritis Center of Riverside
CountryUSUnited States
SectorHealthcare
Ransom amountNot disclosed
Data size exfiltratedNot disclosed
Screenshot on leak siteYes
Press mentioned by groupNo
rheumatology medical practice · Riverside, California, United States | Scanned laboratory requisitions of named patients with dates of birth, home addresses and Medicare subscriber details, April through October 2026; Accounts receivable aging with patient names, account numbers, insurers and balances; Patient billing files and records correspondence of the practice | [NOT PAID — EXPOSED]