GOING WIRELESS
WiFi has turned out to be a hacker's paradise; unlike with wired networks, you don't need to be connected by wire to a computer, directly or indirectly, in order to "invade" a system. With wireless, a determined hacker could tap into the radio signals as your computer collects them.
A "radio hacker," for example, can't change the record playing in the studio and can't remotely change the station on your radio - but they can listen to the same station you're listening to on their own radio. Same thing here; the data on the server is (hopefully) protected, and the data on your hard drive is protected by your firewall or other security system.
But while you're downloading your data from the Internet wirelessly, you're vulnerable.
