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Grupo MGEMAL

listed as MGEMAL · Claimed by Arcusmedia · listed 2 years ago

20m
Age
since listed · data leaked

Status timeline

  1. ListedNov 21, 2024
  2. Data leakeddate unknown

At a glance

Group
Arcusmedia
Status
Data leaked
Country
United States
Listed on leak site
Nov 21, 2024

About the victim

AI dossier — public-source company profile

Grupo MGEMAL is a condominium, corporate, and association management company based in Niterói, Rio de Janeiro, Brazil. Operating for over 35 years, it provides administrative services including accounting, billing, common area scheduling, and document management to residential condominiums and commercial enterprises.

Industry
Condominium & Property Management Administration
Address
Rua Luiz Leopoldo Fernandes Pinheiro, 572, 12º Andar, Niterói, RJ, Brazil

Attack summary

Severity: medium — Data published with no explicit proof files shown in the post. Condominium and property management records contain PII and financial data affecting residents, but scale and sensitivity are moderate without visible documentation.

Arcusmedia claims to have breached Grupo MGEMAL and published data. The leak post contains minimal detail on the scope or type of exfiltration, showing only a timestamp and a brief excerpt matching the company's website text.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Condominium resident records
  • Payment histories
  • Financial documents
  • Accounting records
  • Personal contact information

What the group claims

Days00007777Hours22221111Minutes11118888Seconds44448888 www.mgemal.com.brand efficiency, to guarantee constant satisfaction and peace of mind to o…

Sources

Source

Indexed 2 years 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 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

  • November 21, 2024MGEMAL 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, MGEMAL is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Arcusmedia means MGEMAL 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, CISA (United States), 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.