Acknowledgments I would like to acknowledge all the people who have helped me over the years to gain my knowledge of wireless and provided me with a fun and interesting hobby and career and the opportunity to share that knowledge with others. · · · · · · · Mike Kershaw (Dragorn) for putting up with my constant feature requests and bug reports for Kismet and for making his wonderful tool free to the world. Frank Thornton (Thorn) for providing mentorship and camaraderie at many a con- vention and for helping design some great wireless contests to hone my skills. Chris Hurley (Roamer) for many of the wireless contests and for years of direct and honest opinions and comments on everything wireless. Josh Wright for his wonderful work on coWPAtty and the WPA cracking tables and for many other tools used by thousands of people on a daily basis. Emmanual Goldstein, 2600 magazine, and the HOPE organizers for another won- derful conference full of new ideas and experiences and giving me the opportu- nity to meet my wife. Jeff Moss (Dark Tangent) and the DEFCON staff for continually putting on a wonderful conference and providing a great environment to learn and explore new things and ideas. The DEFCON and Netstumbler forum regulars who have provided years of insight, tutelage, and, at times, questionable encouragement in my research.