Technology makes this world as a small globalised village; in fact the people like to consider both the aspect under this network system which makes their world to a global village. In this paper, the authors have taken one of the most amazing network concepts which makes network simpler. By considering the aspect of both side as of good and its related issues like most important and unavoidable is i.e. "Security". Hence, enhancing the security in wireless networks has become of vital importance. In this perspective of concept, they mainly study two security aspects of wireless networks. One is service confidentiality and access control that is to ensure only legitimate users can access service data according to their privileges and in other perspective is of service attack.