This record tracks a ransomware attack claimed by the
global group against
Shanghai Tunnel Engineering Co Ltd. 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.
10days open
t1 · Published
t2 · Pending
Published
August 19, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
STECS is a leading civil engineering and construction company in Singapore, specializing in rail transit and underground projects.
It has completed over 30 major projects for key clients like the Land Transport Authority and Public Utilities Board.
The company prioritizes safety, environmental responsibility, and improving urban infrastructure in Southeast Asia.
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 stecs.com.sg
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
65+
found in Traditional breaches
4+
found in Ransomware leaks
DUMP ULP 08.07.2026 Base34 1.txt
Database World ROC · breach
••• emails
DUMP ULP 07.07.2026 Base34 3.txt
Database World ROC · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
ANTIPUBLIC #1.tar.zip.001
DBs Backup · breach
••• emails
IntelXPasteScrape_BF.7z
DBs Backup · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
ExploitIn_BF.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources locked
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.