Security is a critical issue in wireless local area networks (WLANs) for many individuals and organizations worldwide, and is one of the main barriers to its adoption in organizations. A good understanding of both the WLAN technology and security issues is required to assist optimum planning and implementation of such systems. In the investigation, a warwalking (field trials) approach is considered. It is observed that the use of WLANs in Auckland city has increased by 114.41% since 2004. It is also observed that about 74.31% of all WLANs detected on 26th June 2007 utilized encryption...