Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Milenia – Informática e Serviços

listed as gemese.pt · Claimed by Arcusmedia · listed 14 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedJul 14, 2026
  2. Data leakeddate unknown

At a glance

Group
Arcusmedia
Status
Data leaked
Country
Portugal
Listed on leak site
Jul 14, 2026

About the victim

AI dossier — public-source company profile

Milenia – Informática e Serviços is a Portuguese IT services and consulting firm founded in 1997, headquartered in Bustos. The company provides information technology solutions and professional services to business clients.

Industry
IT Services & Consulting
Address
Bustos, Portugal
Founded
1997

Attack summary

Severity: medium — Data has been published and the breach is confirmed by listing on the group's leak site, but no specific data types or proof files are detailed in the available post excerpt. No operational impact or specific sensitive data categories are explicitly mentioned.

Arcusmedia claims to have accessed Milenia's systems and exfiltrated data. The group has published the breach on their leak site with a deadline of 21 July 2026.

medium

What the group claims

gemese.ptFounded in 1997, Milenia – Informática e Serviços, headquartered in Bustos in the Deadline: 2026-07-21 18:51:00.000000

Sources

Source

Indexed 14 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 105 public disclosures across our corpus. First observed on a leak site on May 15, 2024; most recent post July 14, 2026. The operation is currently inactive.

Also tracked as: arcus media.

Timeline of this disclosure

  • July 14, 2026gemese.pt listed by Arcusmediaon the group's public leak site

Other recent disclosures by Arcusmedia

Arcusmedia has been linked to 105 public victims on Darkfield. A sample of the most recent:

See the full Arcusmedia dossier →

Sector and geography

Geographically, gemese.pt is reported in Portugal, a country with 7 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Arcusmedia means gemese.pt 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, CERT.PT (Portugal), as required for your jurisdiction.
  • 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.