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Wosac Limited

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

18m
Age
since listed · data leaked

Status timeline

  1. ListedDec 29, 2024
  2. Data leakeddate unknown

At a glance

Group
Arcusmedia
Status
Data leaked
Country
Tanzania
Listed on leak site
Dec 29, 2024

About the victim

AI dossier — public-source company profile

Wosac Limited is a Tanzanian company offering a wide range of electrical products and services. The company operates from Tanzania (TZ domain) and maintains an online presence, though their primary website was under development at the time of this disclosure.

Industry
Electrical Products & Services

Attack summary

Severity: low — Post contains only a listing/announcement with minimal details. No proof files, screenshots, or operational impact are documented. The group's leak post is truncated and provides no concrete evidence of data exfiltration or encryption. The victim's website was under construction, limiting ability to assess business impact.

Arcusmedia claims to have compromised Wosac Limited and published data. The post does not explicitly state whether data was exfiltrated, encrypted, or both, nor does it detail specific data categories at stake.

low

What the group claims

Days00007777Hours00002222Minutes55553333Seconds00001212 www.Wosac.co.tzWosac Limited offers a wide range of products and services including electr…

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

  • December 29, 2024Wosac 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, Wosac is reported in Tanzania, a country with 2 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Arcusmedia means Wosac 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.