This book covers the topic of ethically hacking 802.11 wireless networks (WLANs). It explores the process of performing penetration tests on one's own wireless systems using the same tools and techniques malicious hackers use with the end goal being to find security vulnerabilities and plug the holes before the bad guys exploit them. This book will provide readers with technical knowledge and real-world examples on how various WLAN hack attacks are performed as well as practical advice on how to remediate the security vulnerabilities. The hack attacks covered include physical security, denial of service, wired equivalent privacy (WEP), user authentication, and more.