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Shanghai Tunnel Engineering Co Ltd

global

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.

17days open
t1 · Published t2 · Pending
Aug 19, 2026Not disclosed yet
Country
Singapore
Business Category
IT
Employees
+1000
Discovered
2026-08-28
Published
August 19, 2026
Leak Status
leaked
checked 2026-09-01
Disclosed / Notified
Not disclosed yet
Victim ID
ctkta5tkmr4x

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

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finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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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
B F R e p o V 3 F i l e s · breach
••• emails
LKnet reserve chat · breach
••• emails
Database World ROC · breach
••• emails
+ 17 more leak sources locked
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Visit Website View Group: global

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