An apparatus and a method of securing private content stored in a memory are presented. A terminal includes a memory configured to store a private content identifier associated with private content. The private content identifier includes international mobile subscriber identity information of a smart card associated with a user that is authorized to access the private content. A particular smart card includes a smart card identifier associated with the particular smart card. The terminal also includes a security function configured to perform a comparison of the private content identifier to the smart card identifier and to grant access to the private content when a result of the comparison is positive.