Many organizations are now considering deployment of wireless LANs and are working on the basic network designs before going to pilot projects. As always, network security is a concern. The problems with security on 802.11 networks have been widely reported elsewhere. Network architects are now faced with the challenge of designing secure networks in light of the known problems. This article will discuss seven of the most pressing wireless LAN security problems and potential designs that can mitigate the risk associated with each of them.