Abstract: This information processing apparatus comprises: an acquisition unit that acquires the number of terminals present in a prescribed area, or the weights of moving bodies associated with the terminals present in the prescribed area; and a processing unit that determines, according to whether at least one of the number of terminals and the weights of the moving bodies exceeds a prescribed threshold, whether to generate a geofence.

Abstract: Provided is an information processing device comprising: a processing unit that dynamically sets an area in a portion of the surroundings of a first terminal including the position of the first terminal on the basis of a state of a moving body mounting the first terminal and the position of the first terminal and determines entry of a second terminal into or approach of the second terminal to the area; and a communication unit that transmits, to the second terminal, a signal for causing the second terminal to issue an alarm in response to the entry or the approach.