Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

WILVO

listed as metalnet.nl · Claimed by Werewolves · listed 3 years ago

31m
Age
since listed · data leaked

Status timeline

  1. ListedDec 20, 2023
  2. Data leakeddate unknown

At a glance

Group
Werewolves
Status
Data leaked
Country
Netherlands
Sector
Manufacturing
Listed on leak site
Dec 20, 2023

About the victim

AI dossier — public-source company profile

WILVO is a Dutch high-tech manufacturer of precision mechanical parts, assemblies, and transportation solutions for demanding industries including semiconductor, medical, defense, and agricultural sectors. With production locations in the Netherlands and Germany, they provide integrated services from machining and sheet metal work to assembly and refurbishment.

Industry
Precision Metalworking & High-Tech Manufacturing
Address
Melkweg 1, 5571 SM Bergeijk, Netherlands (HQ); also Nijkerk location
Employees
51-200

Attack summary

Severity: high — Confirmed data publication by ransomware group targeting a precision manufacturer serving critical sectors (semiconductor, medical, defense). Exfiltration of operational/customer data from a supply chain-critical company poses significant business and potential regulatory risk.

The werewolves group claims to have compromised WILVO and exfiltrated data. The post indicates data has been published, though specific data categories are not detailed in the excerpt provided.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Business operations data
  • Customer information
  • Technical/engineering data
  • Supply chain records

What the group claims

Metalnet is a high-level supplier of machining operations. With our divisions for high-precision precision components and cost-effective fine mechanical parts, we are able to produce customer-oriented solutions for the most diverse industrial sectors.

Sources

Source

Indexed 3 years 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 werewolves

The Werewolves ransomware group is a relatively new financially-motivated cybercriminal organization that emerged in December 2023, with limited public documentation available from major threat intelligence sources. Based on available targeting data, the group appears to operate with a focus on business services and manufacturing sectors, having compromised 26 known victims across multiple countries including Russia, the United States, Netherlands, Germany, and France. The group's targeting pattern suggests they may employ opportunistic attack vectors rather than highly sophisticated initial access methods, though specific technical details about their encryption methods, data exfiltration practices, or operational structure remain undocumented by major security research organizations. Due to the group's recent emergence and relatively small victim count, there are no publicly reported high-profile campaigns or significant law enforcement actions against them. The current operational status of Werewolves remains unclear given the limited threat intelligence reporting available from established cybersecurity firms and government agencies. The group has been linked to 26 public disclosures across our corpus. First observed on a leak site on December 20, 2023; most recent post March 13, 2024. The operation is currently inactive.

Timeline of this disclosure

  • December 20, 2023metalnet.nl listed by werewolveson the group's public leak site

Other recent disclosures by werewolves

werewolves has been linked to 26 public victims on Darkfield. A sample of the most recent:

See the full werewolves dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, metalnet.nl is reported in Netherlands, a country with 150 ransomware disclosures in our corpus.

If your organisation is affected

A listing by werewolves means metalnet.nl 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, NCSC-NL (Netherlands), as required for your jurisdiction.
  • Monitor for the data appearing on werewolves'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.