comparing some of the wireless applications in use today by studying how they work. Then focusing on Wi “ Fi (IEEE 802.11 standard) which is a part of wireless LAN , the project will deal with the study of the various intrusion attempts and interruptions that it is faced with and their detection. It would also involve a study of the encryption and decryption schemes used. Then finally it would deal with the development of Wireless Intrusion Detection System (IDS) that would attempt to identify computer system and network intrusions and misuse by gathering and analyzing data.