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 360 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 7, 2026. The operation is currently active.

Timeline of this disclosure

February 6, 2026Atlas Air listed by Evereston the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Transportation/Logistics sector, which has 847 disclosures indexed across all operators we track. Geographically, Atlas Air is reported in United States, a country with 7,392 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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Atlas Air

Claimed by Everest · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 6, 2026
Data leaked

At a glance

Group: Everest
Status: Data leaked
Country: United States
Sector: Transportation/Logistics
Listed on leak site: Feb 6, 2026

About the victim

AI dossier — public-source company profile

Atlas Air Worldwide Holdings is a U.S.-based aviation services company headquartered in Purchase, New York, operating one of the world's largest fleets of wide-body freighter aircraft. The company provides outsourced aircraft and aviation operating services to airlines, freight forwarders, and the U.S. military. Atlas Air serves global customers through scheduled and charter cargo operations.

Industry: Air Cargo & Charter Services
Address: 2000 Westchester Avenue, Purchase, New York 10577, United States
Employees: 1000-5000
Founded: 1992

Attack summary

Severity: high — Atlas Air is a major air cargo operator with ties to U.S. military logistics; confirmed data publication by the group suggests significant business and potentially sensitive operational data was exfiltrated and released, posing high risk to operations and personnel.

The Everest ransomware group claims to have attacked Atlas Air and lists the incident as 'data_published', indicating exfiltration and publication of data. The leak post itself is minimal and does not specify the volume or exact nature of data published.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Employee records
Operational documents
Financial records

Original description

AI-summarised, not from the leak post

Atlas Air Worldwide Holdings Inc. is a cargo and passenger charter airline based in Purchase, NY. Founded in 1992, Atlas Air operates globally with a large and efficient fleet of Boeing 747 aircraft. The company offers a variety of services like outsourced aircraft, crew maintenance, and insurance (ACMI), charter businesses, and dry leasing.

The leak post

captured from the group's site

© 2026, All rights reserved
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Sources

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

Source

Indexed 3 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.