????? ????? ????????? ?????? ??? ??????? ?iOS: ????? ?????? ????? ????????? ??? ?????? ????? ????? ????????? ???? ??? ???????? ?? ?? ???? ???? ?? ?????? ????? ??????? ?? ???? ????? ?????????? ?? ????? ??????? ???? ???? ?????? ????? ???? ??? ???????. 4 actions to a brilliant safe accountFour steps to an excellent Risk-free serverRole of directors