Designing an intrusion detection system for a mobile wireless system is technically a difficult task. Due to more mobile computing devices are coming into existence, in variable size, capabilities, mode of interaction, and so on. One day mobile devices and its applications are omnipresent in the world. Mobile devices are using wireless technologies like Bluetooth, Infrared, Wibree, Zigbee, 802.11, IrDA, WiMax (802.16), Wireless Sensor Network (802.15) or ultrasound. These devices are using different technologies but one thing is common to them is that they are cooperative in nature. And due to this nature and their sophisticated applications they are vulnerable to threats and attacks. In the recent years numerous new attacks are identified which are not present in the wired networks. And wired networks intrusion detection system is completely failed to fix. This paper discusses the security attacks and intrusion detection systems methodology for self configurable networks.