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 1,858 public disclosures across our corpus. First observed on a leak site on October 8, 2022; most recent post May 21, 2026. The operation is currently active.

Timeline of this disclosure

April 30, 2026MES Hybrid Document Systems listed by qilinon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, MES Hybrid Document Systems is reported in CA, a country with 278 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

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MES Hybrid Document Systems

Claimed by qilin · listed 20 days ago

20d

Age

since listed · data leaked

Status timeline

Listed
Apr 30, 2026
Data leaked

At a glance

Group: qilin
Status: Data leaked
Country: CA
Sector: Business Services
Listed on leak site: Apr 30, 2026

About the victim

AI dossier — public-source company profile

MES Hybrid Document Systems is a Canadian company that provides document management software, document scanning services (including microfilm scanning), and office automation solutions. It serves a range of sectors including healthcare, municipal government, education, human resources, and financial services. The company focuses on helping organizations transition to paperless workflows, improve compliance, and streamline business processes.

Industry: Document Management & Scanning Solutions
Address: Canada (province not stated on excerpt; registered as www.mesltd.ca, CA)

Attack summary

Severity: high — Data is confirmed published by the group. MES handles sensitive documents for healthcare, social work, legal, financial, and government clients, meaning exfiltrated data likely includes regulated or sensitive client information even if the exact inventory is unspecified.

The Qilin ransomware group claims an attack on MES Hybrid Document Systems with the disclosed status indicating data has been published. No specific details about encryption or the precise nature of exfiltrated data are provided in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business documents
Client records
Internal operational data

What the group claims

N/A

The leak post

captured from the group's site

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Sources

Source

Indexed 20 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.