This record tracks a ransomware attack claimed by the
cuba group against
stm.com.tw. 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.
1320days open
t1 · Published
t2 · Pending
Country
Taiwan, Province of China
Published
November 04, 2022
Disclosed / Notified
Not disclosed yet
Attack Summary
The organization stm.com.tw appears on the cuba ransomware leak site. It operates in the Other sector. The affected entity is based in Taiwan, Province of China. The incident was first observed on November 04, 2022.
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 stm.com.tw
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
14
found in Traditional breaches
2
found in Ransomware leaks
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Televerde
play · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
ReadNovel_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Csdn.net - Chinese Software Developer Network Database.rar
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
368.020 Lines From Dumps 2025 Leak Mixed HQ.txt
LAC-Team · breach
••• emails
Leak volumes are 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.