Method and system of passing and applying delegations of authority

The present technology relates to an information processing device, an information processing method, and a program that allow authority to be delegated without bothering the user. Provided are an acquisition unit that acquires information for receiving delegation of an authority that is predetermined, a change unit that changes a level of the authority when a predetermined condition is satisfied, and a processing unit that performs a process using the authority that is predetermined. The acquisition unit acquires first information, an inquiry is made to a server using the first information to acquire second information from the server, and the authority that is predetermined is delegated by acquiring the second information. The present technology can be applied to, for example, an agent device to which the authority to access predetermined information is delegated from a user.