A guide to penetrating and defending wireless networks, and to hacking wireless networks. It helps you master the attacker's arsenal of hardware and software tools: knowledge for crackers and auditors. It also helps you learn systematic counter measures for building hardened wireless 'citadels' including cryptography-based techniques.About the Author: The authors have been active participants in the IT security community for many years and are security testers for leading wireless equipment vendors. Andrew A. Vladimirov leads the wireless consultancy division at Arhont Ltd, one of the UKs leading security consultants. He was one of the UKs first IT professionals to obtain the coveted CWNA wireless certification. Konstantin V. Gavrilenko co-founded Arhont Ltd. He has more than 12 years of IT and security experience, and his expertise includes wireless security, fire-walls, cryptography, VPNs, and IDS. Andrei A. Mikhailovsky has more than a decade of networking and security experience and has contributed extensively to Arhonts security research papers.