19. Case on Identity Verification of Potential Subscribers to Mobile Communications Services the identification. In this way, the 13-digit resident registration number will not be continuously used by the mobile carrier. In fact, the Potential Subscriber may not directly provide the resident registration number by choosing to enter into the subscription contract with the mobile carrier online, in which his or her identity is verified by a certified digital signature instead of the resident registration number. Furthermore, the Personal Information Protection Act and the Act on Promotion of Information and Communications Network Utilization and Information Protection, Etc. aim to prevent harm, including data leakage, caused by the collection of the personal information, including any person’s name, address, date of birth, and resident registration number. To this end, these Acts prescribe technological and managerial standards that a personal information controller must meet in protecting personal information, and grant to administrative agencies a prerogative to supervise whether the personal information controller complies with those standards. In this way, limitations on the right to informational self-determination are reduced to the minimum. The identity verification process shall be made under the Provisions at Issue in a process of the contract for mobile communications services, through which the Potential Subscriber has not yet made any communications. As a result, this identity verification process does not enable a third party to immediately obtain specific information, such as with whom, when, and for how long the user has communicated. Therefore, the Provisions at Issue do not place the Potential Subscriber in a situation where he or she cannot readily subscribe to mobile phone services out of fear that he or she may be punished because of the content of and circumstances surrounding communications made through the mobile phone services. The Provisions at Issue serve substantial public interests in preventing harm caused by identity theft and deterring criminals from using mobile phones registered under false names to commit a crime such as voice phishing, as well as in maintaining order existing in a communications network. These public interests outweigh the disadvantages to the - 216 -