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, 2026atolon-parkhotel listed by stormouson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Hospitality and Tourism sector, which has 159 disclosures indexed across all operators we track. Geographically, atolon-parkhotel is reported in DE, a country with 333 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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atolon-parkhotel

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: DE
Sector: Hospitality and Tourism
Listed on leak site: May 2, 2026

About the victim

AI dossier — public-source company profile

Atolon Parkhotel is a hotel property located in Germany, operating within the hospitality and tourism sector. Based on the leak post references to reservations, personnel records, and trainee data, it appears to be a mid-sized hotel operation. No public website content was available to confirm further details.

Industry: Hospitality & Hotel Management

Attack summary

Severity: high — Data has been published (disclosed status: data_published) and includes personally identifiable information such as CVs, personnel records, trainee data, and financial invoices. The combination of PII for employees and guests/applicants alongside financial records constitutes significant sensitive data exposure warranting a high severity rating.

The Stormous ransomware group claims to have exfiltrated data from Atolon Parkhotel, with data described as published. The stolen data allegedly includes CVs, invoices, reservation records, personnel information, and trainee records.

high

Data the group says was taken

AI dossier — extracted from the leak post

CVs / resumes
Invoices (FACTURES)
Reservation records (2025)
Personnel records
Employee/staff information
Trainee (intern) records
AA GROUPE 2025 documents
Huawei.com-related files

What the group claims

CVs - FACTURES - Hwawei.com - AA GROUPE 2025 - RESERVATION 2025 - PERSONNELS - INFOS - STAGIAIRES.....

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.