This record tracks a ransomware attack claimed by the
lockbit3 group against
gproulxinc.com. 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.
1183days open
t1 · Published
t2 · Pending
Business Category
Communication / Marketing
Disclosed / Notified
Not disclosed yet
Attack Summary
For more than 45 years, G. Proulx Inc. has been serving the construction industry in the Montreal area. Our activities are concentrated in the commercial, industrial, institutional and residential supply. We are confident that we can meet any of...
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 gproulxinc.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
37+
found in Traditional breaches
1+
found in Ransomware leaks
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••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
Bell2017_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
AudiUSA_BF.7z
TheUnderground - Reborn · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
contacts_6.csv
Database World ROC · breach
••• emails
+ 4 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.