There is provided a service providing system that is capable of preventing personal information on a user who has used a service from being leaked to other users without spoiling the convenience for the user, and increasing the frequency with which the user uses the service. The service providing system includes a service providing apparatus that provides a service for the user, and a password issuing device that issues a password with an expiration date that is made to correspond to identification information held by the user in response to the payment of a fee by the user. The service providing apparatus includes a memory that stores setting data used for simplifying operations relating to the service provided for the user, and a CPU. The CPU authenticates the user according to the identification information on the user, the password issued to the user, and the expiration date thereof, and gives the authenticated user a permission to perform operations on the setting data stored in the memory.