Brazil's largest bank, Itau Unibanco, has unveiled a new service allowing its clients to trade cryptocurrencies, according to a report from Reuters. Initially, the bank will facilitate transactions involving Bitcoin and Ethereum, with plans to gradually expand its support to encompass a broader range of digital assets in the future. Guto Antunes, a spokesman for the bank, highlighted this initial phase, stating, "While we begin with Bitcoin, our overarching strategic vision includes expa...