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Wireless networks and ubiquitous availability of the global Internet have already changed dramatically the way we communicate, conduct business, and organize our society. With current research and developments in sensor networks and pervasive computing, we are even creating a new networked world. However, the benefits associated with information and communication technology imply new vulnerabilities. In wired networks we have to take care of front door security but same solutions do not apply to wireless networks and they have weak security solutions. The wireless networks by inherently insecure. In this paper we address the threats in wireless networks in detail and we propose novel solutions which will not only detect the attack on the network but will also take counter measures to save integrity of wireless networks.