The improved system of SAC prevents many attacks like resisting adaptive chosen-cipher text attack and can be conveniently incorporated with the context-based coding. So the attacker still cannot reduce the uncertainty of which symbol is splitted.But it doesn't talk about detecting any alteration or loss in data in the middle of the transmission and the person's authenticity that is sending and receiving the data involved in the transmission is missing. In our system, improved SAC are escorting SAC by adding information about sender and preserves the message content by computing hash function which prevents not only attacks mentioned previously but also maintains the integrity of data.