The payload ransomware group listed Stahlbau Mann GmbH on its data leak site on 2026-11-03. Country: DE Sector: Manufacturing Claim as published on the leak site: Stahlbau Mann GmbH is a German structural engineering and manufacturing company specializing in the design, fabrication, and assembly of steel structures. The company builds load-bearing frameworks for industrial plants, logistics and warehouse complexes, and commercial centers, as well as customized architectural and facade components. It delivers end-to-end solutions, covering everything from engineering calculations and 3D modeling to final on-site installation in accordance with European bui