The medusa ransomware group listed Expert E-commerce GmbH on its data leak site on 2025-08-20. Country: DE Sector: Technology Domains named: expert.de Claim as published on the leak site: Expert E-commerce GmbH is a company specializes in E-commerce Services. It offers services that provide the participating specialist stores of the expert group (Expert SE) via online support. The company was formed in 1999 and is based in Langenhagen, Germany. The total amount of data leakage is 114 GB