This record tracks a ransomware attack claimed by the
global group against
Hangzhou Qihan Biotech Co., Ltd.. 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.
24days open
t1 · Published
t2 · Pending
Business Category
Healthcare / Pharma
Published
August 12, 2026
Leak Status
leaked
checked 2026-09-01
Disclosed / Notified
Not disclosed yet
Attack Summary
Qihan Biotech is a Hangzhou‑based biotech company specializing in gene editing and cell/organ therapies. It develops immune‑privileged cells and xenogeneic organs to treat cancer and organ failure. The company aims to make these therapies accessible worldwide.
Leak Screenshots
SAMPLE
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Dark Web Exposure
Findings for qihanbio.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
5
found in Traditional breaches
0
found in Ransomware leaks
DUMP ULP 07.07.2026 Base34 4.txt
Database World ROC · breach
••• emails
iDTech.7z
B F R e p o V 3 F i l e s · breach
••• emails
DUMP ULP 07.07.2026 Base34 3.txt
Database World ROC · breach
••• emails
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