RedShoe

yes.
I saw a dateline type show once where this guy went to a park in a city where people had laptops and were just minding their own business. This hacker opened up some sort of wireless detector and immediately honed in on 8 laptops. Then he started another program that narrowed it down to a specific machine. HE then sent a packet of information and was able to set up a network. Within minutes he was browsing the guys machine and sending him brute force messages.

It was all part of a hacker series they were doing.

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