This record tracks a ransomware attack claimed by the
qilin group against
semco-tech.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.
-45days
t1 · Published
t2 · Disclosed
Disclosed / Notified
May 16, 2025
Attack Summary
SEMCO Technologies is a France-based expert in electrostatic chucks (ESCs), essential components in semiconductor device manufacturing. The company focuses on delivering advanced and tailored wafer handling solutions to meet the needs of larg ...
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 semco-tech.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
18
found in Traditional breaches
6
found in Ransomware leaks
colisprive.fr.rar
Database World ROC · breach
••• emails
WEICON
medusa · ransomware
••• emails
Deezer_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Ants.7z
Database World ROC · breach
••• emails
Drupal.zip
Database World ROC · breach
••• emails
Canva_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 2 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.