This record tracks a ransomware attack claimed by the
daixin group against
Gagosian. 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.
-54days
t1 · Published
t2 · Disclosed
Business Category
Public Sector
Published
September 11, 2025
Disclosed / Notified
Jul 20, 2025
Attack Summary
Established by Larry Gagosian in Los Angeles in 1980, Gagosian is a global gallery specializing in modern and contemporary art that employs more than three hundred people at eighteen exhibition spaces across the United States, Europe, and Asia.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for gagosian.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
2,545+
found in Traditional breaches
291+
found in Ransomware leaks
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••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.