The instant and obvious benefits of WiFi have made WLANs a big success in public, private, and enterprise sectors. Unfortunately, the adoption of correct security measures for WLANs is lagging far behind the fast pace at which these networks are being deployed. The presence of WiFi in most laptops and handhelds, the simplicity of independently installing WiFi networks, and the ease of exploiting wireless vulnerabilities have together escalated the risks manifold. Even organizations that do not own a WLAN are equally at risk.