An information processing device includes at least one processor, in which the processor acquires position information and vital information of a user, determines whether or not the user is an infection risk person who has a probability of infection with an infectious disease, on the basis of the vital information, specifies, in a case where the user is determined to be the infection risk person, an infection risk place where there is a probability that the user is infected by the other person or infects the other person, on the basis of the position information, and distinguishably maps the infection risk place specified for the infection risk person and the infection risk place specified in advance for a confirmed infected person with the infectious disease.