Disclosure context

About qilin

Qilin is a ransomware group that emerged in October 2022, operating with primarily financial motivations through targeted attacks against organizations across multiple sectors. The group appears to operate independently with limited public information available regarding their specific country of origin or affiliations to other ransomware families. Qilin employs double extortion tactics, typically exfiltrating sensitive data before deploying their encryption payload, though specific details about their initial access vectors and technical tools remain less documented in public security research. The group has demonstrated a broad targeting approach, with their 1645 known victims spanning multiple countries including the United States, France, Canada, United Kingdom, and Germany, with particular focus on manufacturing, technology, healthcare, and business services sectors. Based on available intelligence reporting, Qilin remains an active threat as of recent assessments, continuing their ransomware operations without significant reported law enforcement disruption. The group has been linked to 1,857 public disclosures across our corpus. First observed on a leak site on October 8, 2022; most recent post May 20, 2026. The operation is currently active.

Timeline of this disclosure

April 28, 2026TYLin International Group - Taiwan Branch listed by qilinon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Construction sector, which has 415 disclosures indexed across all operators we track. Geographically, TYLin International Group - Taiwan Branch is reported in TW, a country with 46 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

林同棪工程顧問股份有限公司 (T.Y.Lin Taiwan Consulting Engineers Inc.)

listed as TYLin International Group - Taiwan Branch · Claimed by qilin · listed 22 days ago

22d

Age

since listed · data leaked

Status timeline

Listed
Apr 28, 2026
Data leaked

At a glance

Group: qilin
Status: Data leaked
Country: TW
Sector: Construction
Listed on leak site: Apr 28, 2026

About the victim

AI dossier — public-source company profile

T.Y.Lin Taiwan Consulting Engineers Inc. (林同棪工程顧問股份有限公司) is the Taiwan branch of TYLin International Group, a civil and structural engineering consultancy founded in 1954. The firm provides engineering consulting services across bridges, highways, railways, MRT systems, tunnels, buildings, airports, environmental works, and water resources projects. Headquartered in Taipei, the company operates as part of a global engineering group with a presence across multiple countries.

Industry: Civil & Structural Engineering Consulting
Address: 台北市仁愛路三段136號12樓 (No. 136, Section 3, Ren'ai Road, 12F, Taipei City, Taiwan)
Founded: 1954

Attack summary

Severity: high — Data has been published (disclosed status: data_published), confirming exfiltration and release of business data from a significant international engineering consultancy involved in critical infrastructure projects, though the specific data types and scale are not enumerated in the available post.

The Qilin ransomware group claims to have attacked TYLin International Group's Taiwan Branch, with the disclosure status recorded as data_published, indicating exfiltrated data has been released. No specific details about the volume or nature of published data were provided in the leak post.

high

What the group claims

N/A

The leak post

captured from the group's site

Qilin blog Sorting Created At Name Bluize Software Company url Zoom Info May 13, 2026 0 photos Learn More Mayer Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More Spirit Medical Transport Ambulance Services Company url Zoom Info May 13, 2026 0 photos Learn More Domaine Des Tournels Manufacturing Company url May 13, 2026 0 photos Learn More Johnson Carter Architects Architecture, Engineering & Design Company url Zoom Info May 13, 2026 0 photos Learn More LTJ Industrial Services Industrial Machinery & Equipment Company url Zoom Info May 13, 2026 0 photos Learn More Brand X Hydrovac Services Civil Engineering Construction Company url Zoom Info May 13, 2026 0 photos Learn More John G Yphantides A Professional Law Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More One Legal Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More The Gravity Group Architecture, Engineering & Design Company url Zoom Info May 12, 2026 3 photos Learn More Mediapost Spain Advertising & Marketing Company url Zoom Info May 12, 2026 13 photos Learn More + 6 more AppDirect Software Company url Zoom Info May 11, 2026 0 photos …

Sources

Source

Indexed 22 days 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.