A sensitive content display control system determines whether to display sensitive content on a computing device display, such as on a lock screen. The system attempts to authenticate a user of the computing device, and does not display the sensitive content if the user is not authenticated. If the user is authenticated, then the system determines whether anyone in addition to the user is looking at the computing device display. If the user is authenticated and no one else is looking at the computing device display, then the sensitive content is displayed. However, if the user is authenticated and at least one additional person is looking at the computing device display, then the sensitive content is not displayed.