An information processing method includes: storing first authentication information and second authentication information, the first authentication information being information for a user to access a first information processing device, the second authentication information being information for the first information processing device to access a second information processing device; acquiring first index information from the second information processing device based on the second authentication information, wherein the first index information is information regarding a file stored in the second information processing device; and generating a list including the first index information, and second index information, the second index information including information regarding a file stored in the first information processing device and correspond to the first authentication information.