This record tracks a ransomware attack claimed by the
lockbit3 group against
psi.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.
-67days
t1 · Published
t2 · Disclosed
Country
Taiwan, Province of China
Published
September 19, 2022
Disclosed / Notified
Jul 15, 2022
Attack Summary
psi.com.tw is the website of Phoenix Silicon International Corporation (PSI), a Taiwan-based electronics company headquartered in Hsinchu Science Park, Hsinchu, Taiwan. The company says it was founded in 1997 and focuses on wafer process service development, wafering, and wafer thinning. PSI also maintains investor-relations and corporate information services through its official site. The entity was listed as a ransomware victim associated with lockbit3.
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 psi.com.tw
— indexed by HaveIBeenRansom.
3
found in Infostealer logs
38+
found in Traditional breaches
0+
found in Ransomware leaks
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Dropbox_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
AntiPublic_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
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
2844Breaches_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 6 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.