The embodiments of the present disclosure provide an information processing method, which includes receiving, by a game server, an operation message sent by a first client, the operation message carries location information corresponding to a start point and an end point of an attack operation; sending, by the game server, the location information to at least one second client, determining, by each of the at least one second client, whether there is an obstacle between the start point and the end point of the attack operation, and sending a corresponding determination result to the game server, wherein each of the at least one second client is a client that participates in a same session of a game with the first client; judging, by the game server, validity of the attack operation triggered by the first client, according to determination results.