The qilin ransomware group listed California Golf Club of San Francisco on its data leak site on 2025-10-07. Country: US Sector: Hospitality Domains named: www.calclub.org Claim as published on the leak site: California Golf Club of San Francisco, commonly known as Cal Club, is a private golf club established in 1918, originally located in Ingleside before moving to its current 425-acre site in 1924. The club features a world-class golf course des ...