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Listed on a ransomware leak site

Arthritis Center of Riverside

thearthritiscenter.com

Arthritis Center of Riverside was listed on the N0n leak site on Oct 24, 2026. Information as of Oct 25, 2026.

Country: United StatesIndustry: Healthcare
Updated continuously · figures as of Oct 25, 2026
Claimed by
N0n
First listed
Oct 24, 2026
Claims recorded
1

Leak-Site Claim.

N0nConfirmed claim
Posted on the leak site
Oct 24, 2026
Collected by Brandefense
Oct 24, 2026
Data claimed
Not stated
Leak-site post text, written by the group
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]

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Figures as of Oct 25, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.