By Angus Berwick and Tom Wilson (Reuters) – Global cryptocurrency exchange Binance had secret access to a bank account belonging to its purportedly independent U.S. partner and transferred large sums of money from the account to a trading firm managed by Binance CEO Changpeng Zhao, banking records and company messages show. Over the first three months of 2021, more than $400 million flowed from the Binance.US account at California-based Silvergate Bank to this trading firm, Merit Peak Ltd, according to records for the quarter, which were reviewed by Reuters. The Binance.US account was register…