To provide an information processing device that is capable of enhancing reliability of detection processing of detecting a terminal.
An information processing device includes: a first communication unit that transmits, by using a short-distance wireless communication function, a request to a terminal corresponding to identification information obtained beforehand; a determination unit that determines, on the basis of presence/absence of a response from the terminal corresponding to the identification information to the request, whether or not the terminal has been detected; and a second communication unit that transmits, to other devices, a detection result based on the determination of the determination unit.