Zurich Cantonal Bank, Switzerland's fourth largest bank with assets totaling $290 billion, has announced the launch of Bitcoin and cryptocurrency services. The bank, also known as Zürcher Kantonalbank (ZKB), is introducing Bitcoin and Ethereum trading for its retail clients and third-party banks. Customers, including 1.5 million clients, will be able to trade these cryptocurrencies via the bank’s mobile banking app, eBanking, and other channels. ZKB's new offerings are supported by its own custody solution, ensuring secure management of digital assets.