Was Ruhrpumpen hit by ransomware?

Ruhrpumpen was listed by the Dark Project 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 Dark Project ransomware group?

Dark Project 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 Ruhrpumpen breach?

Dark Project published data attributed to Ruhrpumpen. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Ruhrpumpen

Claimed by Dark Project · listed 3 days ago

Age

since listed · data leaked

Status timeline

ListedAug 5, 2026
Data leakeddate unknown

At a glance

Group: Dark Project
Status: Data leaked
Country: Germany
Sector: Manufacturing
Listed on leak site: Aug 5, 2026

About the victim

AI dossier — public-source company profile

Ruhrpumpen is a global manufacturer of highly engineered centrifugal and reciprocating pumps serving oil & gas, power generation, chemical, water treatment, and mining sectors. The company operates multiple facilities and service centers with product lines spanning between-bearing pumps, overhung pumps, magnetic drive pumps, fire systems, and hydraulic decoking systems.

Industry: Industrial Pumps & Fluid Handling Equipment

Attack summary

Severity: high — Confirmed exfiltration of 1 TB of data including personal and financial information at a significant industrial manufacturer; no operational disruption claimed but data sensitivity and scale indicate high severity.

Dark Project claims to have conducted a cyberattack on Ruhrpumpen's network resulting in exfiltration of approximately 1 TB of data, including confidential personal and financial information.

high

Data the group says was taken

AI dossier — extracted from the leak post

Personal information
Financial records
Internal business data

What the group claims

About Ruhrpumpen Ruhrpumpen is a leading global manufacturer of highly engineered centrifugal and reciprocating pumps. A sophisticated cyberattack in the company's network led to a massive data breach. As a result of the incident, approximately 1 TB of data was leaked, including confidential personal and financial information.

Sources

Victim sitewww.ruhrpumpen.com
Leak posthttp://darkprn3d3udnhpuxknsrhft3376lrz5tenhgkrxge5hxqe46pkbrwid.onion/article?slug=ruhrpumpen

Source

Indexed 3 days 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 Dark Project

Dark Project is a ransomware group first observed in August 2026 with an apparent primary motivation of financial gain, based on its targeting profile and operational patterns consistent with other profit-driven ransomware actors. As of the time of this writing, no major cybersecurity organizations including CISA, the FBI, Mandiant, or other reputable threat intelligence firms have published detailed public reporting attributing Dark Project to a specific nation-state, threat actor cluster, or affiliated ransomware ecosystem, and it remains unclear whether the group operates as a Ransomware-as-a-Service platform or as an independent closed operation. Based on available victim telemetry, the group has claimed at least 18 known victims across a geographically diverse range of countries, with the United States, United Kingdom, Mexico, the Philippines, and Germany representing its most frequently targeted regions. Its sectoral focus spans manufacturing, healthcare, transportation, hospitality, and education, suggesting an opportunistic targeting methodology rather than a narrowly defined strategic focus, though the inclusion of healthcare and critical infrastructure-adjacent sectors such as transportation warrants continued monitoring. Due to the group's recent emergence and limited public documentation at this time, specific details regarding initial access vectors, encryption implementation, extortion tactics, and tooling remain unconfirmed by open-source intelligence sources, and analysts should treat any further claims with appropriate caution pending corroborating reporting from authoritative sources. Dark Project should be considered an emerging threat actor under active observation. The group has been linked to 19 public disclosures across our corpus. First observed on a leak site on August 5, 2026. The operation is currently active.

Timeline of this disclosure

August 5, 2026Ruhrpumpen listed by Dark Projecton the group's public leak site

Other recent disclosures by Dark Project

Dark Project has been linked to 19 public victims on Darkfield. A sample of the most recent:

See the full Dark Project dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,692 disclosures indexed across all operators we track. Geographically, Ruhrpumpen is reported in Germany, a country with 382 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dark Project means Ruhrpumpen 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, CERT-Bund (Germany), as required for your jurisdiction.
Monitor for the data appearing on Dark Project'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.