BOA filed a lengthy regulatory filing this week; in it they mention the risks of cryptocurrencies to their business; the bank wrote: “The widespread adoption of new technologies, including internet services, cryptocurrencies and payment systems, could require substantial expenditures to modify or adapt our existing products and services as we grow and develop our internet banking and mobile banking channel strategies in addition to remote connectivity solutions.”; they also discussed the regulatory consequences of cryptocurrencies which could limit the ability for the bank to track movement of funds. Source