This record tracks a ransomware attack claimed by the
thegentlemen group against
Jentech Precision Industrial. 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.
3days open
t1 · Published
t2 · Pending
Indexed by Breach House
October 09, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
jentech.com.tw zoominfo.com/c/jentech-precision-industrial-co-ltd/344286614 Jentech Precision Industrial Co., Ltd. (TWSE: 3653) is a publicly listed Taiwanese thermal management and precision metal components manufacturer founded in 1987 in Taoyuan, Taiwan, IPO'd on the Taiwan Stock Exchange in 2009. It generates ~$450–640M USD annual revenue (NT$14.28B in FY2024, growing 20% CAGR) with 2,000+ employees across Taiwan (970), China Wuxi (639), Malaysia, Germany, and the USA. Jentech is the global leader in integrated heat spreaders (IHS) for CPU/GPU/AI chips — its flagship products include Vapor Chamber Lids, Micro-Channel Lids (1000W+ TDP), liquid cooling modules, and EV battery cold plates, all manufactured with sub-micron precision using 99.99% oxygen-free copper and full vertical integration. Key clients include NVIDIA, AMD, Intel, TSMC, Sony, IBM, and Qualcomm. The company is riding the AI boom — semiconductor segment revenue surged +237% in 4 years — and holds a unique VC + MC
Leak Screenshots
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Dark Web Exposure
Findings for jentech.com.tw
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
132
found in Traditional breaches
0
found in Ransomware leaks
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••• emails
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••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
LKnet reserve chat · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
Database World ROC · breach
••• emails
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