War-Driving

War-Driving is the act of driving around in a car, searching for wireless access points. Why is this done? Because it's very common for people to plug in wireless access points without any regard for security. This makes it trivial to break into a network using a simple laptop with a wireless Ethernet card.

Additional Articles

War Driving, War Flying and War Chalking With the advent of extremely inexpensive wireless access points, a new hacking technique called war driving has appeared.