Your Wi-Fi can tell people a lot about you

Traveler beware! Taking care of business right before jumping in that plane heading south may render your vacation... unpleasant. This CNet article discusses the risks associated with using your laptop on unsecured wireless network, such as those found in airports and even networks with low (WEP) security. The data that can be sniffed (intercepted) on such networks can vary from usernames and passwords used on various websites, to lists of wireless networks your computer has already connected to, and more.

Soon after a computer powers up, it starts looking for wireless networks and network services. Even if the wireless hardware is then shut-off, a snoop may already have caught interesting data. Much more information can be plucked out of the air if the computer is connected to an access point, in particular an access point without security.

Read on... at CNeT.