An information management device includes a memory and a processor configured to receive an access request to information related to individual, the access request including designation of a first data table including first information related to the individual and a second data table including second information related to the individual, perform, in accordance with whether the first data table and the second data table include a same key, determination of whether the individual is identified based on a combination of the first information and the second information to be included in a response to the access request, and perform a stop of output of the response when it is determined that the individual is identified based on the combination.