A mobile terminal, comprising: a communication unit configured to communicate with at least one external terminal; a memory configured to store at least a first and second operating system including at least first and second modes, respectively; and a controller configured to execute the first operating system and to activate the first mode corresponding to the first operating system, to display a first information screen on a display corresponding to the activated first mode, to receive a switching signal indicating the first mode is to be switched to the second mode, to activate the second mode and deactivate the first mode, and to display a second information screen on the display corresponding to the second mode and that is different than the first information screen, characterized in that the controller is further configured to control the communication unit to transmit a mode switching request signal to a specific external terminal failing to activate the same mode of the mobile terminal, compare a first designated security level related to the mobile terminal to a second designated security level related to the specific external terminal, and control the communication unit not to transmit the second information screen or transmit a portion of the second information screen or transmit a whole second information screen to the specific external terminal based on the result of the comparison of the first and second designated security levels. a communication unit configured to communicate with at least one external terminal; a memory configured to store at least a first and second operating system including at least first and second modes, respectively; and a controller configured to execute the first operating system and to activate the first mode corresponding to the first operating system, to display a first information screen on a display corresponding to the activated first mode, to receive a switching signal indicating the first mode is to be switched to the second mode, to activate the second mode and deactivate the first mode, and to display a second information screen on the display corresponding to the second mode and that is different than the first information screen, characterized in that the controller is further configured to control the communication unit to transmit a mode switching request signal to a specific external terminal failing to activate the same mode of the mobile terminal, compare a first designated security level related to the mobile terminal to a second designated security level related to the specific external terminal, and control the communication unit not to transmit the second information screen or transmit a portion of the second information screen or transmit a whole second information screen to the specific external terminal based on the result of the comparison of the first and second designated security levels. control the communication unit to transmit a mode switching request signal to a specific external terminal failing to activate the same mode of the mobile terminal, compare a first designated security level related to the mobile terminal to a second designated security level related to the specific external terminal, and control the communication unit not to transmit the second information screen or transmit a portion of the second information screen or transmit a whole second information screen to the specific external terminal based on the result of the comparison of the first and second designated security levels.