| 摘要 |
PROBLEM TO BE SOLVED: To provide an information processing apparatus, an information processing method, a program, and an information processing system which can verify a user who illegally uses an account of membership service.SOLUTION: An information processing apparatus includes an account information acquisition unit for acquiring account information registered in membership service, a movement history information acquisition unit for acquiring movement history information associated with the account information, a reference information acquisition unit for acquiring reference information for calculating a confidence level of the account information, and a confidence level calculation unit for calculating the confidence level of the account information on the basis of the movement history information and the reference information. |
