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Jentech Precision Industrial

Claimed by Thegentlemen · listed 5 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedOct 9, 2026
  2. Data leakeddate unknown

At a glance

Group
Thegentlemen
Status
Data leaked
Country
Taiwan
Sector
Manufacturing
Listed on leak site
Oct 9, 2026

About the victim

AI dossier — public-source company profile

Jentech Precision Industrial Co., Ltd. is a publicly listed Taiwanese manufacturer (TWSE: 3653) founded in 1987, specializing in integrated heat spreaders, vapor chamber lids, micro-channel cooling modules, and EV battery cold plates for semiconductor and AI chip applications. With ~2,000 employees across Taiwan, China, Malaysia, Germany, and the USA, and annual revenue of approximately $450–640M USD, it is a global leader supplying major clients including NVIDIA, AMD, Intel, TSMC, and Qualcomm.

Industry
Thermal Management & Precision Metal Components Manufacturing
Address
Taoyuan, Taiwan
Employees
2000+
Founded
1987

Attack summary

Severity: low — The post is a listing/announcement with no proof files shown, no specific data types disclosed, and no operational impact stated. Public company details appear to be repurposed from ZoomInfo and the company website rather than genuine exfiltrated content.

The leak post claims access to Jentech's data but provides no details on the nature of the breach (encryption, exfiltration, or both) or what specific data categories were compromised. The group has published the company information on their leak site but no proof files, screenshots, or data samples are advertised in the truncated post.

low

What the group claims

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

Sources

Source

Indexed 5 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 960 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post October 9, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

  • October 9, 2026Jentech Precision Industrial listed by thegentlemen on the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 960 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,699 disclosures indexed across all operators we track. Geographically, Jentech Precision Industrial is reported in Taiwan, a country with 58 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Jentech Precision Industrial appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.