We have identified the 802.11 WLAN as the most vulnerable and critical node in wireless converged network security. WLANs can easily be reconfig-ured, are very mobile, allow for potentially continuous exposure, and require the level of security (a.k.a., a security profile) to be scrutinized even more than is required for wired networks. This includes inherent security flaws known to exist in 802.11 architecture that result in additional risks to otherwise secure converged wired networks. An even worse scenario to consider is one where an insecure WLAN is connected to a weakly secured or insecure wired network and the wireless subnet is not separated from the wired subnet. There is a significant need for a comprehensive network security methodology that integrates wired and wireless technologies and addresses their characteristics and security requirements.