This record tracks a ransomware attack claimed by the
apt73 group against
isosl.be. 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.
-80days
t1 · Published
t2 · Disclosed
Business Category
Healthcare / Medicine
Disclosed / Notified
Feb 07, 2026
Attack Summary
ISOSL is an engineering company in Belgium, which deals with industrial solutions, automation and...
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 isosl.be
— indexed by HaveIBeenRansom.
4
found in Infostealer logs
117+
found in Traditional breaches
27+
found in Ransomware leaks
Clabots
play · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• 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
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Расшифровка Badoo.com [25,8kk].rar
Misha-z88 DB · 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
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 sources.
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.