Methods of backing up and restoring a profile and devices therefor are disclosed. The method of backing up a profile includes transmitting, by an authentication module, a profile backup command to an operator server, transmitting, by the operator server, information to the authentication module, the information being generated by confirming a state of at least one repository capable of storing the profile, and storing the profile in a selected repository. The method of restoring a profile includes transmitting, by an authentication module, a profile restoration command to an operator server, transmitting, by the operator server, information to the authentication module, the information being generated by confirming a state of at least one repository having a profile stored therein, and restoring, in an authentication module, a profile stored in a selected repository.