This record tracks a ransomware attack claimed by the
qilin group against
Arnold Center. 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.
0days open
t1 · Published
t2 · Pending
Business Category
NGOs / Associations
Indexed by Breach House
September 28, 2026
Leak Status
pending
checked 2026-09-28
Disclosed / Notified
Not disclosed yet
Attack Summary
Arnold Center (www.arnoldcenter.org) is a United States‑based nonprofit organization that provides mental‑health counseling, educational workshops, and community outreach programs to individuals and families. Operating within the NGOs and Associations sector, the center focuses on promoting emotional well‑being, resilience, and support networks across diverse populations. The organization maintains a public‑facing website that offers resources, event information, and avenues for donations and volunteer involvement. As part of a threat‑intelligence index, Arnold Center is recorded as a ransomware victim associated with the Qilin threat actor, reflecting its exposure to cyber‑crime activity in the United States.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-28. Verdict evidence: [M1] No download, torrent, mirror, part files, or published labels visible.
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Dark Web Exposure
Findings for arnoldcenter.org
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
326+
found in Traditional breaches
11+
found in Ransomware leaks
VerificationsIO_BF.7z.011
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pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
shinyhunters · ransomware
••• emails
Database World ROC · breach
••• emails
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