[Object] To provide an information processing system capable of making it difficult to be easily recognized as being a key at a glance by others. [Solution] Provided is an information processing system including a state acquisition unit configured to acquire information on a state of an object, and an authentication information acquisition unit configured to acquire authentication information corresponding to the information on the state of the object acquired by the state acquisition unit. According to such an information processing system, it is made difficult to be easily recognized as being a key at a glance by others.