Preventive Measures

One common ways that hackers can gain access to your wireless network
is to send a “Trojan horse,” or a program that makes it possible to
circumvent your access control schemes by infecting a file with a virus.
Your best protection is to install and constantly update the virus definitions
at every wireless workstation.
Without your ever realizing it, there are a number of ports and open
services on most workstation clients. Many clients have Web, FTP, and
mail servers enabled. All these “available services” are invitations for a
hacker to gain entry into one client and work his way through your entire
system. The best means of protection is to install a personal firewall on
each one of your wireless clients. This is the most effective way to make
certain that anyone who does try to access any services on your wireless
workstation won’t be able to get past the firewall blocking these ports.