Implement media access control (MAC) filtering. A MAC address is a physical address, so if you restrict access to devices whose address you have authorised, you can eliminate many ID theft issues. Another variation of this is device authentication, where the device authenticates itself to the network. Solutions are available from companies such as Phoenix Technologies, etc.

Also ensure your users have a wireless firewall/VPN to protect them and to manage encrypted VPNs from the wireless device. Companies such as WatchGuard and Check Point provide centrally manageable solutions in this area.


Bear in mind that many cheaper remote firewalls are incapable of dealing with application level attacks. A key requirement for remote firewalls, wireless or static, is to be able to deal with current and future threats, which include packet and, increasingly, application level attacks. All of these measures should greatly improve your mobile computing security with the minimum of fuss and resistance from staff.