A method and apparatus for checking use of an electronic device based on a video signal obtained by a camera in the state that the device displays an authentication screen. The electronic device of the present disclosure includes a memory that stores user authentication information, a camera module, an input interface, and a processor. The processor receives a request for displaying a lock screen, activates the camera module based on the request, acquires images including at least one object in association with the electronic device, receives an input made through the input interface, compares the input with the authentication information, and transmits, when the input mismatches the authentication information, the acquired images to an external electronic device.