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 11, 2026FANASA.COM UPDATE-FULL DATA DUMP listed by stormouson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, FANASA.COM UPDATE-FULL DATA DUMP is reported in Mexico, a country with 92 ransomware disclosures in our corpus.

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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FANASA.COM UPDATE-FULL DATA DUMP

Claimed by stormous · listed 9 days ago

Age

since listed · data leaked

Status timeline

Listed
May 11, 2026
Data leaked

At a glance

Group: stormous
Status: Data leaked
Country: Mexico
Sector: Not Found
Listed on leak site: May 11, 2026

About the victim

AI dossier — public-source company profile

FANASA.COM appears to be a Mexican company, likely operating in wholesale distribution or commercial services based on the nature of the leaked data (CFDI/XML fiscal documents, commercial invoices, client and vendor databases). The company is subject to Mexican tax regulations (RFC taxpayer identification system). No public site content was available to further clarify its operations or scale.

Industry: Wholesale Distribution or Commercial Services

Attack summary

Severity: high — Confirmed exfiltration and publication of a full data dump containing PII, financial transaction records, taxpayer identification numbers (RFC), and client/vendor databases constitutes significant exposure of regulated and sensitive personal and financial data, meeting the threshold for high severity.

The Stormous ransomware group claims to have exfiltrated a full data dump from FANASA.COM, publishing data described as including PII, electronic fiscal documents, financial transaction records, commercial invoices, taxpayer identification numbers, and client/vendor databases. The disclosure is marked as data_published, indicating the data has been released.

high

Data the group says was taken

AI dossier — extracted from the leak post

Personally Identifiable Information (PII)
Electronic Fiscal Documents (CFDI/XML)
Financial Transaction Records
Commercial Invoices & Billing Data
Taxpayer Identification Numbers (RFC)
Client & Vendor Database
Internal Corporate Documentation

What the group claims

Personally Identifiable Information (PII), Electronic Fiscal Documents (CFDI/XML), Financial Transaction Records, Commercial Invoices & Billing Data, Taxpayer Identification Numbers (RFC), Client & Vendor Database/Internal Corporate Documentation

Source

Indexed 9 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.