This record tracks a ransomware attack claimed by the
qilin group against
Mountain Rheumatology. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
1day open
t1 · Published
t2 · Pending
Business Category
Healthcare / Pharma
Indexed by Breach House
October 26, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
www.mountainrheumatology.com operates within the United States healthcare and medicine sector, focusing on rheumatology services and patient-related medical offerings. The entity is cataloged in the threat-intelligence index under the listing type ransomware victim, with the associated threat actor or source identified as qilin. This designation reflects the cybersecurity classification of the organization within the index, contextualizing its exposure profile within healthcare threat landscapes. No specific incident details such as data stolen, ransom demands, or verified breach scope are included here, in compliance with factual reporting constraints. The record neutrally documents that www.mountainrheumatology.com was listed as a ransomware victim associated with qilin.
Leak Screenshots
30 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-26. Verdict evidence: [M1] Published
Proof files published by the operator —
29 image(s) harvested from this entry.
Content is locked; type and dimensions shown.
Showing the latest capture only
Unlock the daily capture history — up to 45 days of evidence, plus the 29 proof file(s) the operator published.
Dark Web Exposure
Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
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Full exposure is locked
See every breached email, the internal-vs-external split and each leak source behind this victim.
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This ransomware victim record reflects information published on the operator's leak site.
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