The shortage of a central authority might also make cryptocurrencies safer. "It truly is hack-evidence for the reason that there's no 1 central stage of failure," explains David Donovan, govt vice chairman at Publicis Sapient.????? ?????? ??? ????? ?????????? ??????? ?????? ??? ??????? ??? ????????? ????? ????? ????.?????? ??? ??? ??????????? ????