The akira ransomware group listed Grau GmbH on its data leak site on 2026-05-07. Country: DE Sector: Manufacturing Claim as published on the leak site: Grau GmbH is a Retail, and Furniture and Home Furnishings Manufacturing company located in Hamb urg. We will upload 19gb of corporate data soon. Employee personal information (German passports and other information), projects, financials, client data and so on.