This record tracks a ransomware attack claimed by the
thegentlemen group against
Geb Sas. 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.
1day open
t1 · Published
t2 · Pending
Published
August 21, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
geb.fr zoominfo.com/c/geb-sas/372743980 GEB SAS is a historic French chemical manufacturing company established in 1860.
They specialize in formulating and producing essential sealing solutions, adhesives, and PVC glues.
The family-owned business primarily provides high-quality maintenance and installation products for plumbing and heating professionals.
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 geb.fr
— indexed by HaveIBeenRansom.
12
found in Infostealer logs
291+
found in Traditional breaches
24+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Full Clouds Cit0day_2.7z.001
DBs w MTDT · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
linkedIN_2.7z.001
DBs Backup · 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.