The Nefilim ransomware operation has begun to publish unencrypted files stolen from a Dussmann Group subsidiary during a recent attack. The company confirmed to BleepingComputer that one of their subsidiaries, Dresdner K..hlanlagenbau GmbH (DKA), recently suffered a ransomware attack where data was stolen. DKA is a subsidiary of the German multi-service provider in Germany with subsidiaries focusing on facility management, corporate childcare, nursing and business systems solutions, including HVAC, electrical work and elevators.
Source: https://www.bleepingcomputer.com/news/security/business-giant-dussmann-groups-data-leaked-after-ransomware-attack/