Method for processing data, user sides, server and system

The invention discloses a method for processing data. The method includes receiving shielding instructions for specified user identities; transmitting shielding requests to a server so that data packets comprising the specified user identities are shielded when the server transmits data packets to user sides which transmit the shielding requests. The shielding instructions are inputted by users. The shielding requests carry the specified user identities. An embodiment of the invention further provides the corresponding user sides, the server and a system. According to the technical scheme, the method, the user sides, the server and the system have the advantage that data can be shielded for the users if the users do not want to receive the data.