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, 2026arc-reins.com + fidelityunited.ae listed by stormouson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 516 disclosures indexed across all operators we track. Geographically, arc-reins.com + fidelityunited.ae is reported in AE, a country with 32 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

← All victims

arc-reins.com + fidelityunited.ae

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: AE
Sector: Financial Services
Listed on leak site: May 2, 2026

About the victim

AI dossier — public-source company profile

Fidelity United (fidelityunited.ae) is a UAE-based insurance company that commenced operations in 1976, resulting from a 2017 partnership between United Insurance Company and Fidelity Assurance and Reassurance SAL, rebranded in 2018. It operates 5 offices across the UAE, serving over 285,000 individuals, and offers a broad range of insurance products including motor, health, marine, property, liability, and life insurance for both personal and corporate clients. ARC (arc-reins.com) appears to be an associated reinsurance or insurance brokerage entity whose data was also compromised in the same breach.

Industry: Insurance & Financial Services (UAE)
Address: UAE (5 offices in the UAE; specific street address not stated in available data)
Founded: 1976

Attack summary

Severity: critical — Confirmed exfiltration and publication of 700 GB of regulated financial and insurance data including KYC files, passports, national IDs, bank details, passwords, and thousands of personal records across clients, partners, and employees — constituting large-scale PII and regulated financial data exposure in the financial services sector.

Stormous claims to have exfiltrated approximately 700 GB (also described as 600 GB) of data from Fidelity United and ARC, with data already published; no encryption claim is made. The exfiltrated data allegedly includes KYC records, bank details, compliance audit data, employee PII (passports, ID cards), insurance deal archives, client lists, and internal credentials.

critical

Data the group says was taken

AI dossier — extracted from the leak post

KYC and KYC TOBA files for all partners
Complete bank details for ARC
Compliance audit data
Legal licenses and tax documents
Official contracts
Employee passports and ID cards
Employee personal data and career details
Manager contracts and internal communications
Marine insurance deal archive (Middle East)
Property, civil liability, and risk insurance records
Monthly and annual quality control reports
Collective agreements with international partners
Business travel logs
Passwords and DC client lists
Digital identities and official company signatures
Major client lists
Thousands of personal records for Fidelity and ARC brokers

What the group claims

We have gained full control over 700 GB of data, which includes: meticulous compliance audit data, complete Bank details for ARC, legal licenses, tax documents, and official contracts, as well as KYC and KYC TOBA files for all partners.Additionally, personal data for all employees has been extracted, including passports, ID cards, emails, career details, personal documents, and contracts for managers and internal communications. The breach also covers the marine insurance archive with all its deals in the Middle East, property insurance, civil liability, and risk insurance, in addition to monthly and annual quality control reports and collective agreements with major international partners.We have full control over administrative data, business travel logs, passwords, and DC client lists, along with all internal correspondence, digital identities, and official company signatures. The data also includes a list of major clients and thousands of personal information records for Fidelity and ARC brokers, including their full personal details. All of this and more, totaling 600 GB of secrets.

Sources

Victim sitefidelityunited.ae

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.