The safepay ransomware group listed stadtwerke-clausthal.de on its data leak site on 2025-12-16. Country: DE Sector: Energy & Utilities Domains named: stadtwerke-clausthal.de Claim as published on the leak site: Stadtwerke Clausthal-Zellerfeld is a municipal utility company (Stadtwerk) serving the town of Clausthal-Zellerfeld in Lower Saxony, Germany. As a publicly …