Soft Computing techniques are fast growing technology used for problem solving, Information security is of essence factor in the age of computer world. Protecting information, systems and resources from unauthorized use, duplication, modification ,adjustment or any kind of cause which damage the resources such that it cannot be repaired or no longer exist to the real user is one of the part of soft computing. Researcher proposed several mechanism to fight against cyber attacks. Several existing techniques available intrusion detection systems are responsible to face upcoming cyber attacks. Soft computing is one of the best presently using techniques which is applied in Intrusion Detection System to manage network traffic and use to detect cyber attacks with increased efficiency and accuracy.