This record tracks a ransomware attack claimed by the
alphv group against
Groupe Marchand Architecture & Design Inc. 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.
-50days
t1 · Published
t2 · Disclosed
Business Category
Construction / Real Estate
Published
August 24, 2023
Disclosed / Notified
Jul 06, 2023
Attack Summary
GMAD (Groupe Marchand Architecture & Design Inc.) ne fait pas que de l'architecture, il sait créer des milieux de vie à l'image de sa clientle.
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 gmad.ca
— indexed by HaveIBeenRansom.
1
found in Infostealer logs
21+
found in Traditional breaches
10+
found in Ransomware leaks
linkedIN_2.7z.001
Database World ROC · breach
••• emails
Ovalstrapping
play · ransomware
••• emails
VITAMIX.COM
clop · ransomware
••• emails
MGM_Grand_Hotels RUTOR.7z
TheUnderground - Reborn · breach
••• emails
123RF_BF.7z
TheUnderground - Reborn · breach
••• emails
HeroesOfNewerth_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
GiveSendGo_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
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.