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Da Guan Technology

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Da Guan Technology. 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.

117days open
t1 · Published t2 · Pending
May 06, 2026Not disclosed yet
Country
Taiwan, Province of China
Business Category
IT
Employees
0-50
Discovered
2026-05-06
Published
May 06, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
ALPsITQ642Ur

Attack Summary

daguan-tech.com.tw Da Guan Technology serves as the official distributor of two major brands: Mitsubishi Electric (Japan) and Lifegear (Taiwan) — offering a full range of products including heat recovery ventilators (HRV), bathroom warm-air dryers, ultra-quiet exhaust fans, circulation fans, and fresh-air systems. Their primary sales channels include construction companies, interior designers, plumbing distributors, and premium bathroom retailers

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.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for daguan-tech.com.tw — indexed by HaveIBeenRansom.
0
found in Infostealer logs
2
found in Traditional breaches
0
found in Ransomware leaks
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Canva_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Leak volumes are locked
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