Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

OKAN

listed as okan.ru · Claimed by Warlock · listed 9 months ago

9m
Age
since listed · data leaked

Status timeline

  1. ListedSep 8, 2025
  2. Data leakeddate unknown

At a glance

Group
Warlock
Status
Data leaked
Country
Russia
Listed on leak site
Sep 8, 2025

About the victim

AI dossier — public-source company profile

OKAN (okan.ru) is a Russian company specialising in unique technical solutions for nuclear power plants (АЭС — atomnye elektrostantsii). The company operates in the nuclear energy sector, providing engineering and technical services to the Russian nuclear industry. The scale and exact headcount are not publicly stated on the available site excerpt.

Industry
Nuclear Power Engineering & Technical Solutions

Attack summary

Severity: critical — The victim is a technical solutions provider to nuclear power plants (critical infrastructure). Even a limited financial data exfiltration from a nuclear-sector contractor carries critical severity due to the sensitive nature of the industry, potential national-security implications, and the confirmed data-published status.

The Warlock ransomware group claims to have exfiltrated finance data from OKAN and has published the data. No ransom amount or data volume was stated in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Finance data

What the group claims

finance data

Sources

Source

Indexed 9 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About warlock

Warlock is an emerging ransomware group that first appeared in June 2025, primarily motivated by financial gain through extortion operations targeting organizations across multiple sectors. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their targeting pattern spans both Western nations and Russia, suggesting possible opportunistic rather than geopolitically-motivated operations. Based on available victim data, Warlock has demonstrated capability to compromise organizations across diverse sectors including technology, financial services, telecommunications, and healthcare, with their attack methodology and technical capabilities requiring further analysis by security researchers to establish definitive patterns regarding initial access vectors, encryption methods, or data exfiltration tactics. While the group has accumulated 78 documented victims across the United States, Japan, Russia, Great Britain, and Turkey within their initial months of operation, insufficient public reporting from CISA, FBI, or major security firms exists to detail specific notable campaigns, ransom demands, or high-profile incidents. Given the group's recent emergence in mid-2025, their current operational status and potential evolution remain under observation by the cybersecurity community. The group has been linked to 78 public disclosures across our corpus. First observed on a leak site on June 11, 2025; most recent post November 6, 2025. The operation is currently inactive.

Timeline of this disclosure

  • September 8, 2025okan.ru listed by warlockon the group's public leak site

Other recent disclosures by warlock

warlock has been linked to 78 public victims on Darkfield. A sample of the most recent:

See the full warlock dossier →

Sector and geography

Geographically, okan.ru is reported in Russia, a country with 63 ransomware disclosures in our corpus.

If your organisation is affected

A listing by warlock means okan.ru 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 warlock'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.