The kairos ransomware group listed Heidelberggc on its data leak site on 2025-12-08. Country: AU Sector: Hospitality Claim as published on the leak site: At Heidelberg Golf Club. We offer not only a beautiful 18 hole golf course, but also an 8 rink lawn bowls green and multiple function rooms to suit any occasion. Follow the links below to find out more. Heidelberg Golf Club is located only 30 minutes from Melbourne’s CBD. The perfect location for any occasion and one of the best golfing experiences Melbourne golf has to offer!