How Hackers Fit into the Equation

Hackers look for open conduits into your intranet in an attempt to
acquire information on your protected resources. They love wireless networks
because WLANs represent a method of gaining access that a corporate
wired LAN does not provide directly. With modified transmission
sites, it may be possible to try to break into a LAN from the next building
or even down the street. The point is that a determined hacker,
given enough time and ambition, will find a way to either eavesdrop on
your WLAN traffic or log into your network.
If the hacker happens to have a stolen PDA, the process of finding a
way into your corporate intranet is much easier. One needs only to
break through the defense of the PDA (which is not terribly hard to do)
and use that information to mount an attack against your intranet. As it
has become essential to do business with wireless messaging applications
and productivity tools, wireless connectivity constitutes a necessity
for mobile employees.