ABSTRACT
Unlike a wired LAN that provides some physical control over access to the infrastructure, its wireless cousin transmits radio frequency signals that are subject to interception. This means that a wireless LAN could have its transmission read by an uninvited third party. Because wireless LANs use the airwaves, this also means they are subject to jamming and other types of interference rarely encountered in a wired environment. Security is therefore a key area of concern for wireless LAN operations and is the focus of this chapter.