Was Wachendorff hit by ransomware?

Wachendorff was listed by the thegentlemen ransomware operation (Germany), 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 thegentlemen ransomware group?

thegentlemen 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 Wachendorff breach?

thegentlemen published data attributed to Wachendorff. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Wachendorff Unternehmensgruppe

listed as Wachendorff · Claimed by Thegentlemen · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 24, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Germany
Sector: Manufacturing
Listed on leak site: Feb 24, 2026

About the victim

AI dossier — public-source company profile

Wachendorff Unternehmensgruppe is a German industrial group comprising multiple subsidiaries including Wachendorff Automation (encoders and measurement systems, 'Made in Germany'), Wachendorff Prozesstechnik (IIoT, data visualisation and Industry 4.0 solutions), Wachendorff Electronics, and VISUALYS. The group has been a supplier to German mechanical and plant engineering for over 45 years, developing both hardware and software solutions for industrial communication and automation.

Industry: Industrial Automation & Measurement Technology

Attack summary

Severity: medium — The status is listed as 'data_published', indicating claimed exfiltration and publication, but the leak post content is entirely unreadable (bot-check wall), so no specific data categories, volume, or proof files can be confirmed. A manufacturing/industrial automation group could hold sensitive engineering IP and business data, warranting at least medium severity, but the absence of any verifiable proof or data inventory prevents a higher rating.

The group 'thegentlemen' claims a disclosed data publication against Wachendorff; the leak post itself was inaccessible due to a bot-protection challenge page, so specific claims regarding encryption or exfiltration cannot be verified from the post content.

medium

What the group claims

wachendorff.de zoominfo.com/c/wachendorff-gebäude/368536587 Wachendorff Unternehmensgruppe specializes in the development and manufacturing of encoders and measurement systems, providing reliable solutions for rotary and linear measurement tasks. They also offer industrial electronics and automation technology, serving as a trusted partner for industrial communication and visualization for over 45 years. Their VISUALYS division focuses on creating data awareness through web and app-based software solutions, emphasizing IIoT, data visualization, and data analysis. The company caters to clients in the German machinery and plant engineering sector, delivering high-quality, robust devices tailored to specific applications

The leak post

captured from the group's site

Gentlecloud Protection 🛡️ Gentlecloud Verifying your browser... Initializing security checks... I'm not a bot

Sources

Victim sitewachendorff.de
Leak posthttp://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion

Source

Indexed 4 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 thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 483 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 11, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

February 24, 2026Wachendorff listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 483 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Wachendorff is reported in Germany, a country with 695 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Wachendorff 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 thegentlemen'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.