The akira ransomware group listed WINTER Ingenieure on its data leak site on 2026-08-25. Country: DE Sector: Manufacturing Domains named: winter-ingenieure.de Claim as published on the leak site: WINTER Ingenieure specializes in planning and monitoring the construction of technical building equipment across Germany, focusing on functionality, sustainability, and cost-effectiveness. W ith a team of over 140 employees located in Düsseldorf, Berlin, and Hamburg, they integrate tec hnical components into buildings innovatively. We will upload 340gb of corporate data soon. Employee personal information (German passports, I Ds, addresses, phones contacts), confidential files, projects, lots of specifications and so on .