This record tracks a ransomware attack claimed by the
cactus group against
Verhelst. 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.
-39days
t1 · Published
t2 · Disclosed
Business Category
Construction / Real Estate
Published
November 21, 2023
Disclosed / Notified
Oct 14, 2023
Attack Summary
verhelst.be is the website of Verhelst Group, a Belgian construction group active in building materials and related services. Its site describes it as a multispecialist for construction materials, offering products such as beams, joists, panels and site equipment for both large projects and smaller works. The group says it has been active in Belgium for four generations and operates across multiple locations in the country. It was listed as a ransomware victim associated with cactus.
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 verhelst.be
— indexed by HaveIBeenRansom.
16
found in Infostealer logs
193+
found in Traditional breaches
18+
found in Ransomware leaks
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Prosolit
medusa · ransomware
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• 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.