This record tracks a ransomware attack claimed by the
meow group against
Vanderbilt University Medical 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.
-48days
t1 · Published
t2 · Disclosed
Business Category
Healthcare / Pharma
Published
November 18, 2023
Disclosed / Notified
Oct 01, 2023
Attack Summary
100% LEAKED
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 vumc.org
— indexed by HaveIBeenRansom.
80
found in Infostealer logs
2,444+
found in Traditional breaches
556+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
FlexBooker_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Neiman Marcus_.7z.001
Database World ROC · breach
••• emails
ENOVIS.COM
clop · ransomware
••• emails
+ 17 more leak sources locked
Leak volumes are 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.