The dark project ransomware group listed Ruhrpumpen on its data leak site on 2026-08-05. Country: DE Sector: Manufacturing Domains named: www.ruhrpumpen.com Claim as published on the leak site: 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.