This record tracks a ransomware attack claimed by the
arcusmedia group against
College stjb. 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.
-67days
t1 · Published
t2 · Disclosed
Business Category
Education
Disclosed / Notified
May 22, 2025
Attack Summary
Days06Hours23Minutes22226666Seconds22229999
stjb-delasalle.frThe Collège Saint Jean-Baptiste de La Salle is a Catholic establishment b…
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 stjb-delasalle.fr
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
15
found in Traditional breaches
0
found in Ransomware leaks
colisprive.fr.rar
Database World ROC · breach
••• emails
@TXTLOG_ALIEN — @TXTLOG_LINK - 491.txt
Database World ROC · breach
••• emails
3200000 lines.txt
formaceft_db · breach
••• emails
Database World ROC · breach
••• emails
Ants.7z
Database World ROC · breach
••• emails
www.nrjmobile.fr.rar
Database World ROC · breach
••• emails
UnspecifiedFrenchLeakAkaANTS_PF.7z
Database World ROC · breach
••• emails
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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.