Was Colegio de la Compania de Maria Vigo hit by ransomware?

Colegio de la Compania de Maria Vigo was listed by the Arcusmedia ransomware operation (Spain), 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 Colegio de la Compania de Maria Vigo breach?

Arcusmedia published data attributed to Colegio de la Compania de Maria Vigo. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Colegio de la Compañía de María Vigo

listed as Colegio de la Compania de Maria Vigo · Claimed by Arcusmedia · listed 1 year ago

14m

Age

since listed · data leaked

Status timeline

ListedMay 18, 2025
Data leakeddate unknown

At a glance

Group: Arcusmedia
Status: Data leaked
Country: Spain
Sector: Education
Listed on leak site: May 18, 2025

About the victim

AI dossier — public-source company profile

Colegio de la Compañía de María Vigo is a Catholic educational institution founded in 1886 in Vigo, Spain, operated by the Compañía de María religious order. The school serves students from infant through secondary and baccalaureate levels, with a mission rooted in Christian humanism and integral personal development. It is part of a global network of 87 schools operated by the order across multiple continents.

Industry: Primary & Secondary Education
Address: Rúa do Ecuador 35, 36203 Vigo (Pontevedra), Spain
Employees: 51-200
Founded: 1886

Attack summary

Severity: medium — Educational institution with likely exposure of student and staff personal data. Data sensitivity is moderate-to-high due to presence of minors' PII, but the leak post contains no proof files, detailed data inventory, or confirmation of encryption. No ransom demand stated.

Arcusmedia group claims to have compromised Colegio de la Compañía de María Vigo and published data. The leak post provides minimal detail on the specific attack vector, data exfiltrated, or encryption status.

medium

Data the group says was taken

AI dossier — extracted from the leak post

student records
staff information
administrative data
educational documentation

What the group claims

Days06Hours22222222Minutes55559999Seconds11115555 ciamariavigo.org Make the Mission of the Company of Mary a reality in schools owned by the …

Sources

Victim siteciamariavigo.org
Leak posthttp://arcuufpr5xxbbkin4mlidt7itmr6znlppk63jbtkeguuhszmc5g7qdyd.onion/?p=476

Source

Indexed 1 year 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

May 18, 2025Colegio de la Compania de Maria Vigo 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

This disclosure adds to ransomware activity in the Education sector, which has 1,082 disclosures indexed across all operators we track. Geographically, Colegio de la Compania de Maria Vigo is reported in Spain, a country with 351 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Arcusmedia means Colegio de la Compania de Maria Vigo 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, INCIBE-CERT (Spain), 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.