Was Yem Chio Co hit by ransomware?

Yem Chio Co was listed by the Dragonforce ransomware operation (Taiwan), 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 Dragonforce ransomware group?

Dragonforce 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 Yem Chio Co breach?

Dragonforce published data attributed to Yem Chio Co. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Yem Chio Co., Ltd. (YC Group / 炎洲集團)

listed as Yem Chio Co · Claimed by Dragonforce · listed 4 months ago

$850M

Ransom

demanded

Age

since listed · data leaked

Status timeline

ListedFeb 13, 2026
Data leakeddate unknown

At a glance

Group: Dragonforce
Status: Data leaked
Country: Taiwan
Listed on leak site: Feb 13, 2026
Ransom demanded: $850M

About the victim

AI dossier — public-source company profile

Yem Chio Co., Ltd. (炎洲股份有限公司), operating as YC Group (炎洲集團), is a Taiwanese conglomerate headquartered in Neihu, Taipei, specialising in the manufacture and sale of adhesive tapes (BOPP packaging tape, PVC tape, double-sided tape, kraft tape), BOPP films (heat-seal, anti-fog, pearl, matte), and packaging materials, with additional divisions covering new materials, new energy, specialty chemicals, and real estate. The group pursues vertical integration across the full tape supply chain and aims to become one of the world's largest tape manufacturers.

Industry: Adhesive Tape & BOPP Film Manufacturing
Address: No. 397, Xingshan Road, Neihu District, Taipei City 11469, Taiwan

Attack summary

Severity: high — Data has been published (data_published status) by the group against a publicly listed Taiwanese conglomerate with investor relations, financial, and HR data at stake; the $850M ransom demand signals significant perceived data value, and exfiltration of financial/shareholder/executive records from a listed company constitutes significant business data exposure.

Dragonforce claims to have compromised Yem Chio Co. and has published data (disclosed status: data_published); the leak post lists the entry alongside hundreds of other victims but does not specify whether encryption, exfiltration, or both occurred, nor does it detail the categories of data taken beyond what can be inferred from the public site context.

high

Data the group says was taken

AI dossier — extracted from the leak post

Financial reports and revenue data
Investor relations documents
Annual reports
Shareholder information
Executive personnel records
HR and recruitment data
ESG and corporate governance documents
Corporate correspondence
Operational site data

What the group claims

Yem Chio Co., Ltd. was founded in 1978 by Mr. Chih Hsien Lee who is the current President and CEO. Although our business was started with low capital and easy equipment, but it was with a broad vision and worldview. Since its early development in 1984, Yem Chio Group has now become a total capital up to US$ 850 million multinational corporations.

The leak post

captured from the group's site

```
{"data":{"count":483,"publications":[{"uuid":"b008b8b7-0e47-416f-adcd-2313d8136de4","created_at":"2026-05-08T20:56:13.122134Z","name":"CF Evans Construction","website":"www.cfevans.com","address":"125 Regional Pkwy Ste 200, Orangeburg, South Carolina, 29118, United States","description":"A recognized leader in the multi-family housing construction industry, CF Evans Construction provides a product for developers. The company has thrived amid six decades.\nThe data of this company includes:\n    Corporate correspondence of senior executives\n    Financial documents\n    HR documents\n    Accounting documents\n    Certificates, contracts, passwords, databases, and much more.","weight":4775795351552,"is_timer_publication_stopped":false,"timer_publication":"2026-05-22T07:48:00Z","try_again":false,"tags":[],"logo_uuid":"f4e582dd-6562-4590-bac8-2b9e5c564853","is_transfering":false},{"uuid":"3827192f-9bb3-490c-9c1c-d28b382510cd","created_at":"2026-05-08T17:53:24.736605Z","name":"CMC Expertise Comptable","website":"cmcexpertise.fr","address":"32 Rue De La Clairière, Fort-de-France,","description":"CMC Expertise Comptable is a certified accounting firm located in Martinique, dedicated t…

Sources

Source

Indexed 4 months 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 Dragonforce

Dragonforce is a relatively new ransomware group that emerged in December 2023, operating with apparent financial motivations based on their targeting patterns and victim selection. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their rapid accumulation of 439 documented victims suggests either sophisticated capabilities or possible connections to existing ransomware infrastructure. Based on their targeting patterns across diverse sectors including manufacturing, business services, technology, and construction, Dragonforce appears to employ opportunistic attack methodologies, though specific initial access vectors, encryption methods, and extortion tactics have not been publicly detailed by major security firms or law enforcement agencies. The group has demonstrated a preference for targeting organizations primarily in English-speaking countries and Western Europe, with the United States, United Kingdom, Germany, Australia, and Italy representing their most frequent victim locations, suggesting possible language capabilities or geographic operational preferences. As of current reporting, Dragonforce appears to remain active given their recent emergence and ongoing victim acquisition, though the lack of detailed public analysis from major threat intelligence organizations indicates either operational security measures that have limited researcher visibility or that the group has not yet conducted sufficiently high-profile attacks to warrant extensive public documentation by CISA, FBI, or established security research firms. The group has been linked to 596 public disclosures across our corpus. First observed on a leak site on December 13, 2023; most recent post June 12, 2026. The operation is currently active.

Timeline of this disclosure

February 13, 2026Yem Chio Co listed by Dragonforceon the group's public leak site

Ransom demanded: $850M

Sector and geography

Geographically, Yem Chio Co is reported in Taiwan, a country with 12 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dragonforce means Yem Chio Co 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 Dragonforce'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.