PROBLEM TO BE SOLVED: To prevent download of an application that may cause phishing and is created by a malicious creator.SOLUTION: A mobile phone 1 includes: a control part 11 for downloading an application from a server that allows a creator registered beforehand to upload creator's own application on the basis of input of creator information including a creator name; and a creator database 12b for registering a name of a creator regarded malicious. In the case where a creator name attached to an application to be downloaded from the server is registered in the creator database 12b, the control part 11 performs prevention processing for preventing the application to which the creator name is attached from being downloaded.