Was Umiles Group hit by ransomware?

Umiles Group was listed by the Everest 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 Everest ransomware group?

Everest 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 Umiles Group breach?

Everest published data attributed to Umiles Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Umiles Group

Claimed by Everest · listed 2 months ago

54d

Age

since listed · data leaked

Status timeline

ListedApr 20, 2026
Data leakeddate unknown

At a glance

Group: Everest
Status: Data leaked
Country: Spain
Sector: Business Services
Listed on leak site: Apr 20, 2026

About the victim

AI dossier — public-source company profile

Umiles Group is a Spanish company specialising in drone operations, urban air mobility, and advanced unmanned aerial vehicle (UAV) services. It serves sectors including logistics, inspection, surveillance, and emergency response. The company is also involved in regulatory development and training programs for drone integration into civil airspace across Europe.

Industry: Drone Operations & Urban Air Mobility Services

Attack summary

Severity: medium — Data has been marked as published by the group, indicating some level of exfiltration and public disclosure, but no specific sensitive data categories, volume, or proof artefacts are described. The victim operates in drone/UAV services with potential national-security-adjacent sensitivity, but no confirmed regulated data exposure is evidenced from the available information.

The Everest ransomware group claims to have published data belonging to Umiles Group, with the disclosure status recorded as data_published. No specific details on encryption, exfiltration volume, or data categories were provided in the leak post.

medium

Original description

AI-summarised, not from the leak post

Umiles Group is a Spanish technology and services company specializing in drone operations, urban air mobility, and advanced aerial solutions. Based in Spain, it provides unmanned aerial vehicle services for sectors including logistics, inspection, surveillance, and emergency response. The company also focuses on developing regulatory frameworks and training programs to support the integration of drones into civil airspace across Europe.

The leak post

captured from the group's site

© 2026, All rights reserved
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Sources

Leak posthttp://ransomocmou6mnbquqz44ewosbkjk3o5qjsl3orawojexfook2j7esad.onion/news/Umiles_Group/

Source

Indexed 2 months 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 Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 369 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 29, 2026. The operation is currently active.

Timeline of this disclosure

April 20, 2026Umiles Group listed by Evereston the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 369 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,643 disclosures indexed across all operators we track. Geographically, Umiles Group is reported in Spain, a country with 212 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Everest means Umiles Group 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.
Monitor for the data appearing on Everest'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.