Was Key 4 Energy Srl hit by ransomware?

Key 4 Energy Srl was listed by the Everest ransomware operation (Italy), 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 Key 4 Energy Srl breach?

Everest published data attributed to Key 4 Energy Srl. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Key 4 Energy Srl

Claimed by Everest · listed 10 months ago

10m

Age

since listed · data leaked

Status timeline

ListedSep 15, 2025
Data leakeddate unknown

At a glance

Group: Everest
Status: Data leaked
Country: Italy
Sector: Energy
Listed on leak site: Sep 15, 2025

About the victim

AI dossier — public-source company profile

Key 4 Energy Srl is an Italian company operating in the energy sector. Based on the name and country of registration, it is likely a small-to-medium enterprise providing energy-related services or solutions in Italy. No public website content was available to confirm further details.

Industry: Energy Services

Attack summary

Severity: high — Data has been confirmed published by the threat actor, indicating successful exfiltration and public release. Energy sector companies may hold operationally sensitive or regulated data, and confirmed data publication elevates severity to high.

The Everest ransomware group claims to have published data belonging to Key 4 Energy Srl, with the disclosure status listed as 'data_published', indicating exfiltration and public release of company data.

high

Data the group says was taken

AI dossier — extracted from the leak post

Company database

Original description

AI-summarised, not from the leak post

Key 4 Energy Srl is an Italy-based company specializing in the optimization of energy resources. Dedicated to promoting sustainable energy, they aim to improve energy efficiency, reduce energy costs, and lessen the environmental impact. They provide services like energy diagnostics, energy audits, energy management, and renewable energy projects for businesses, offering solutions that combine economic sustainability with environmental protection.

The leak post

captured from the group's site

© 2026, All rights reserved
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Sources

Leak posthttp://ransomocmou6mnbquqz44ewosbkjk3o5qjsl3orawojexfook2j7esad.onion/news/Key_4_Energy_Srl

Source

Indexed 10 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

September 15, 2025Key 4 Energy Srl 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 Energy sector, which has 652 disclosures indexed across all operators we track. Geographically, Key 4 Energy Srl is reported in Italy, a country with 635 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Everest means Key 4 Energy Srl 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.
Report the incident to your national CERT, CSIRT Italia (Italy), as required for your jurisdiction.
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.