Was Mark’Techno hit by ransomware?

Mark’Techno was listed by the Arcusmedia ransomware operation, 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 Arcusmedia ransomware group?

Arcusmedia 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 Mark’Techno breach?

Arcusmedia published data attributed to Mark’Techno. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Marktechno

listed as Mark’Techno · Claimed by Arcusmedia · listed 7 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 24, 2026
Data leakeddate unknown

At a glance

Group: Arcusmedia
Status: Data leaked
Sector: Technology
Listed on leak site: Aug 24, 2026

About the victim

AI dossier — public-source company profile

Marktechno is a mechanical and sheet metal machinery dealer with over 30 years of operating history. They stock and resell new and used machines for metal forming and chip removal, serving industrial clients. Since 2018, they have operated as part of the Didelon Machines Outils Group and maintain an inventory of over 1,000 machines.

Industry: Industrial Machinery & Equipment - Metal Forming & Processing
Founded: 1994

Attack summary

Severity: medium — Data exfiltration is claimed and published disclosure is confirmed, but no proof files, data categories, or specific sensitive information classes are detailed in the available post excerpt. The lack of specificity on what was accessed or its sensitivity prevents a higher rating.

The Arcusmedia group claims to have exfiltrated data from Marktechno. The leak post does not specify what data categories were accessed or the operational impact.

medium

What the group claims

https://marcktechno.comMarktechno has been a key player in the mechanical and sheet metal Deadline: 2026-08-31 13:50:00.000000

The leak post

captured from the group's site

###### https://marcktechno.comMarktechno has been a key player in the mechanical and sheet metal industries for over 30 years, characterized by a dedicated team committed to working collaboratively with clients. They offer a range of new and used machines focused on metal forming and chip removal. As a member of the Didelon Machines Outils Group since 2018, they stock over 1,000 machines in their facilities. Their primary clients include industrial businesses seeking reliable machinery solutions.EST SELL : 5 DaysEST LEAK : 7 Days

Screenshot of the leak post

Sources

Leak posthttp://arcuufpr5xxbbkin4mlidt7itmr6znlppk63jbtkeguuhszmc5g7qdyd.onion/?p=792

Source

Indexed 7 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Arcusmedia

Arcusmedia is a relatively new ransomware group that emerged in May 2024, operating with apparent financial motivations based on their targeting patterns across multiple countries and sectors. The group's origin and potential state affiliations remain unclear given limited public documentation from established threat intelligence sources, though their targeting of victims across Brazil, the United States, Spain, UAE, and Mexico suggests either a geographically distributed operation or deliberate international scope. With 98 documented victims in a short operational timeframe, Arcusmedia has demonstrated notable activity levels, primarily focusing on technology, business services, agriculture and food production, and transportation/logistics sectors, though their targeting appears opportunistic rather than strategically focused given the "Not Found" classification as their primary sector target. Limited public reporting from major cybersecurity firms and law enforcement agencies means specific details about their attack methodologies, initial access vectors, encryption techniques, or whether they employ double extortion tactics remain undocumented in authoritative sources. No major campaigns, high-profile victims, or significant law enforcement actions against Arcusmedia have been publicly reported by CISA, FBI, or established threat intelligence organizations. Current operational status appears active based on the recent emergence timeframe, though comprehensive threat intelligence profiles from reputable sources have not yet been published given the group's recent appearance in the threat landscape. The group has been linked to 109 public disclosures across our corpus. First observed on a leak site on May 15, 2024; most recent post August 24, 2026. The operation is currently inactive.

Also tracked as: arcus media.

Timeline of this disclosure

August 24, 2026Mark’Techno listed by Arcusmediaon the group's public leak site

Other recent disclosures by Arcusmedia

Arcusmedia has been linked to 109 public victims on Darkfield. A sample of the most recent:

See the full Arcusmedia dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,573 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Arcusmedia means Mark’Techno 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 Arcusmedia'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.