A method and a device are provided in the field of network technology. In the method, a first server receives an operation request including a second server identifier and second account information. According to the second server identifier and the second account information, the first server determines whether associated account information is available in a predetermined three-party associating relationship. Upon determining that the associated account information is available, the first server obtains the associated account information for use as first account information. Based on the first account information, the first server responds to the operation request. During the process of providing services for a terminal by the second server, the first server obtains the first account information according to the second server identifier, the second account information, and the predetermined three-party associating relationship. The first server responds to the operations of the terminal based on the first account information.