According to CoinDesk, Santander Private Banking International, a subsidiary of Spanish financial giant Banco Santander, is providing trading and investment services for major cryptocurrencies such as Bitcoin (BTC) and Ethereum (ETH) to high-net-worth clients in Switzerland. According to an internal announcement, Santander will provide other cryptocurrencies that meet the bank's screening criteria in the coming months. Santander said that the service is only provided through account managers at the request of customers, and the assets will be stored in a regulated custody model, and the bank will store private keys in a secure environment. This is a bold move because most large banks prefer to use tokenization and avoid contact with open blockchains and cryptocurrencies running on them. Banco Santander has been established for more than 160 years and has 166 million customers. The private bank serves 210,000 wealthy customers with total assets and deposits of approximately US$315 billion.