Black Label's security solution is a mutual verification system, which is a personal identification security solution through mutual verification between SIM and identity authentication server. Among existing wireless communication networks, a mobile communication network using a USIM, which is a personal identification device, is considered to be most secure against hacking. This is because the USIM card has a personal identification code, including the user's mobile communication number, so it sends and receives a telephone call or message after authentication. BLACK LABEL has developed a security solution called "Mutual Verification System" by utilizing the characteristics of SIM and enhancing the disadvantages of the personal identification process to enhance the personal identification security. The mutual verification system is a system that sends and receives personally identifiable information to the authentication server by infinitely changing the i...