A mobile terminal comprising: a wireless communication module configured to transceive data with an external device by wireless communication; a user input unit configured to receive an input of a command from a user; a display unit; a memory; and a controller characterized in that the controller is configured to: if a 1st signal indicating a web lock function is received from a mobile communication network via the wireless communication unit, execute the web lock function for controlling a 1st substitute screen including a password input window to be displayed on the display unit when the display unit is activated, and if a 2nd signal indicating a memory wipe function is received from the mobile communication network via the wireless communication unit, execute a first-step memory wipe function for deleting a user file from the memory and execute a second-step memory wipe function for deleting a system setting, characterized in that the controller is further configured to: if there is an incoming call after the execution of the web lock function, control a 2nd substitute screen for providing limited functions only to be displayed, and control caller information of the incoming call not to be displayed on the 2nd substitute screen. a wireless communication module configured to transceive data with an external device by wireless communication; a user input unit configured to receive an input of a command from a user; a display unit; a memory; and a controller characterized in that the controller is configured to: if a 1st signal indicating a web lock function is received from a mobile communication network via the wireless communication unit, execute the web lock function for controlling a 1st substitute screen including a password input window to be displayed on the display unit when the display unit is activated, and if a 2nd signal indicating a memory wipe function is received from the mobile communication network via the wireless communication unit, execute a first-step memory wipe function for deleting a user file from the memory and execute a second-step memory wipe function for deleting a system setting, characterized in that the controller is further configured to: if there is an incoming call after the execution of the web lock function, control a 2nd substitute screen for providing limited functions only to be displayed, and control caller information of the incoming call not to be displayed on the 2nd substitute screen. if a 1st signal indicating a web lock function is received from a mobile communication network via the wireless communication unit, execute the web lock function for controlling a 1st substitute screen including a password input window to be displayed on the display unit when the display unit is activated, and if a 2nd signal indicating a memory wipe function is received from the mobile communication network via the wireless communication unit, execute a first-step memory wipe function for deleting a user file from the memory and execute a second-step memory wipe function for deleting a system setting, characterized in that the controller is further configured to: if there is an incoming call after the execution of the web lock function, control a 2nd substitute screen for providing limited functions only to be displayed, and control caller information of the incoming call not to be displayed on the 2nd substitute screen. if there is an incoming call after the execution of the web lock function, control a 2nd substitute screen for providing limited functions only to be displayed, and control caller information of the incoming call not to be displayed on the 2nd substitute screen.