Last week a new security problem was announced in the Intel Centrino wireless drivers. It appears to affect the 2200BG and 2915ABG wireless hardware. These are extremely common components that are shipped in many laptops. You would do well to check whether yours or the ones you support have this hardware. The easiest way to check is to double-click the wireless icon in the system tray and then click Properties.
There is information on the web site for how to identify the drivers as well. Systems with these drivers would have entries under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ with the name of the driver. That could be used to search large numbers of systems.
Updated drivers are available from the Intel page that announces the problem: http://support.intel.com/support/wireless/wlan/sb/CS-023065.htm.