A mobile communication terminal comprising: a controller; a touch display, the touch display having an inactive mode essentially without user interaction ability, a lock screen mode with limited user interaction ability, and an operational mode, the lock screen mode generally preventing a user from accessing functionality provided by the mobile communication terminal in the operational mode; and a proximity sensor, wherein the controller is operative, in the lock screen mode, to: detect actuation of the mobile communication terminal; identify the detected actuation as a user command, wherein the user command is an unlock command pertaining to one of the following: • a passcode entered on the touch display, • a swipe motion pattern on the touch display, • a sample detected by a biometric sensor in the mobile communication terminal; evaluate a sensor reading from the proximity sensor; if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal: prevent execution of the user command, and continue in the lock screen mode; and if the sensor reading from the proximity sensor does not indicate presence near the mobile communication terminal: execute the unlock command, thereby allowing said user accessing all functionality provided by the mobile communication terminal in the operational mode, characterized in that if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal, a user feedback is provided by the touch display, said user feedback comprising one of: • explanatory information to the user that execution of the user command has been prevented since the proximity sensor (420; 206) is blocked; or • instructive information facilitating for the user to make sure that the proximity sensor (420; 206) is not blocked. a controller; a touch display, the touch display having an inactive mode essentially without user interaction ability, a lock screen mode with limited user interaction ability, and an operational mode, the lock screen mode generally preventing a user from accessing functionality provided by the mobile communication terminal in the operational mode; and a proximity sensor, wherein the controller is operative, in the lock screen mode, to: detect actuation of the mobile communication terminal; identify the detected actuation as a user command, wherein the user command is an unlock command pertaining to one of the following: • a passcode entered on the touch display, • a swipe motion pattern on the touch display, • a sample detected by a biometric sensor in the mobile communication terminal; evaluate a sensor reading from the proximity sensor; if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal: prevent execution of the user command, and continue in the lock screen mode; and if the sensor reading from the proximity sensor does not indicate presence near the mobile communication terminal: execute the unlock command, thereby allowing said user accessing all functionality provided by the mobile communication terminal in the operational mode, characterized in that if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal, a user feedback is provided by the touch display, said user feedback comprising one of: • explanatory information to the user that execution of the user command has been prevented since the proximity sensor (420; 206) is blocked; or • instructive information facilitating for the user to make sure that the proximity sensor (420; 206) is not blocked. detect actuation of the mobile communication terminal; identify the detected actuation as a user command, wherein the user command is an unlock command pertaining to one of the following: • a passcode entered on the touch display, • a swipe motion pattern on the touch display, • a sample detected by a biometric sensor in the mobile communication terminal; • a passcode entered on the touch display, • a swipe motion pattern on the touch display, • a sample detected by a biometric sensor in the mobile communication terminal; evaluate a sensor reading from the proximity sensor; if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal: prevent execution of the user command, and continue in the lock screen mode; and if the sensor reading from the proximity sensor does not indicate presence near the mobile communication terminal: execute the unlock command, thereby allowing said user accessing all functionality provided by the mobile communication terminal in the operational mode, characterized in that if the sensor reading from the proximity sensor indicates presence near the mobile communication terminal, a user feedback is provided by the touch display, said user feedback comprising one of: • explanatory information to the user that execution of the user command has been prevented since the proximity sensor (420; 206) is blocked; or • instructive information facilitating for the user to make sure that the proximity sensor (420; 206) is not blocked. • explanatory information to the user that execution of the user command has been prevented since the proximity sensor (420; 206) is blocked; or • instructive information facilitating for the user to make sure that the proximity sensor (420; 206) is not blocked.