Disclosure context

About stormous

Stormous is a relatively new ransomware group that emerged in March 2022, operating primarily with financial motivations and has claimed responsibility for attacks against at least 165 victims across multiple countries and sectors. The group's country of origin remains unclear from publicly documented sources, though their operational patterns suggest they may operate as an independent entity rather than a established ransomware-as-a-service model. Limited public documentation from major security firms indicates the group employs common ransomware tactics, though specific details about their initial access vectors, encryption methods, and data exfiltration practices have not been extensively detailed in reports from CISA, FBI, or major threat intelligence providers. Their targeting appears geographically diverse with a focus on Spain, the United States, France, UAE, and Brazil, while showing particular interest in technology, hospitality and tourism, government, and business services sectors, though many of their victims span unspecified industries. As of current reporting, Stormous appears to remain an active threat, though the limited public documentation suggests they operate as a lower-tier ransomware group compared to more prominent families that receive extensive coverage from major security research organizations. The group has been linked to 220 public disclosures across our corpus. First observed on a leak site on March 22, 2022; most recent post May 13, 2026. The operation is currently active.

Timeline of this disclosure

May 2, 2026Ministerio de Cultura de la Republica de Cuba - STORMOUS + GhostSec listed by stormouson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 259 disclosures indexed across all operators we track. Geographically, Ministerio de Cultura de la Republica de Cuba - STORMOUS + GhostSec is reported in CU.

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.

Ransomware victim disclosure

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Ministerio de Cultura de la Republica de Cuba - STORMOUS + GhostSec

Claimed by stormous · listed 19 days ago

18d

Age

since listed · data leaked

Status timeline

Listed
May 2, 2026
Data leaked

At a glance

Group: stormous
Status: Data leaked
Country: CU
Sector: Public Sector
Listed on leak site: May 2, 2026

About the victim

AI dossier — public-source company profile

The Ministerio de Cultura de la República de Cuba (Ministry of Culture of Cuba) is the Cuban government body responsible for overseeing and administering national cultural policy, institutions, and functions. It traces its origins to the National Council for Culture founded in 1961 following the Cuban Revolution. It operates under the central government in Havana, Cuba.

Industry: Government Cultural Administration
Address: Havana, Cuba
Founded: 1961

Attack summary

Severity: high — The target is a national government ministry, and the status is 'data_published', indicating confirmed exfiltration and public release of government data. While the specific data types and volume are not detailed, exfiltration from a sovereign government body warrants a high severity classification.

The joint group STORMOUS and GhostSec claims to have attacked the Cuban Ministry of Culture and published data from the breach; the post indicates data has been disclosed though no ransom or specific data volume was stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Government cultural administration records
Internal ministry documents

What the group claims

The triumph of the Cuban Revolution, government cultural functions were performed by the Department of Culture, Ministry of Education. In 1961 the National Council for Culture was founded.

Source

Indexed 19 days 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.