Was Yudu Technology hit by ransomware?

Yudu Technology was listed by the thegentlemen ransomware operation (Singapore), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Yudu Technology breach?

thegentlemen published data attributed to Yudu Technology. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Yudu Technology Co., Ltd.

listed as Yudu Technology · Claimed by Thegentlemen · listed 5 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJun 20, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Singapore
Sector: Technology
Listed on leak site: Jun 20, 2026

About the victim

AI dossier — public-source company profile

Yudu Technology (御督科技) is a Taiwan-based IT system integrator founded in 2008, specializing in commercial computing hardware and generative AI solutions. The company provides enterprise on-premise AI infrastructure, AI server solutions, and customized digital transformation services to organizations partnering with major technology brands.

Industry: IT System Integration & Artificial Intelligence Solutions
Address: Zhubei, Taiwan
Founded: 2008

Attack summary

Severity: medium — Data has been published by the group with disclosed status, but no proof files, screenshots, or specific sensitive data categories (PII, financial, medical) are detailed in the available post. No ransom amount stated. Moderate concern due to confirmed data publication but limited visibility into data sensitivity.

The ransomware group 'thegentlemen' claims to have attacked Yudu Technology and published data. No specific details on encryption, exfiltration method, or data categories are provided in the leak post.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Business records
Customer or partner data
Internal systems data

What the group claims

***.com zoominfo.com/c/yudu-technology-co-ltd/1340189458 Yudutek is a professional IT system integrator founded in 2008 in Zhubei, Taiwan, specializing in commercial computing hardware and generative AI solutions.With over 15 years of industry experience, the company provides enterprise on-premise AI, AI server infrastructure, and customized digital transformation services.By partnering with major technology brands, Yudutek empowers organizations to seamlessly implement advanced artificial intelligence applications and optimize their operational efficiency

Sources

Victim siteyudutek.com

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 517 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 20, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

June 20, 2026Yudu Technology listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 517 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 Technology sector, which has 3,544 disclosures indexed across all operators we track. Geographically, Yudu Technology is reported in Singapore, a country with 44 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Yudu Technology 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.
Report the incident to your national CERT, SingCERT (Singapore), as required for your jurisdiction.
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.