An apparatus and method of registering and using financial information are provided. The method includes acquiring user information related to a user of the electronic device; authenticating the user based on the acquired user information; transmitting, to a second external device, a request to allow a first external device to receive an access right for accessing a security module included in the electronic device, based on the authentication of the user; and receiving financial information for the user from the first external device, based on the access right being granted from the second external device to the first external device.