Portable, mobile computers such as slate computers have been used in business. The mobile computers are likely to be lost or stolen. Some of the mobile computers, therefore, have a function of deleting data in a terminal by remote control when it is lost or stolen (hereinafter, referred to as a remote wipe).
A remote wipe performed when a mobile computer is lost or stolen has a problem that the probability of success is low for such a reason that the computer is not connected to a network, and whether or not the remote wipe has succeeded cannot be determined.