Wireless local area network (wireless Lan) technology frees businesses and home users from the tyranny of computer cabling. But it also brings new threats, potentially opening another door to attack from unscrupulous competitors, hackers and other criminals intent on obtaining . . .
Wireless local area network (wireless Lan) technology frees businesses and home users from the tyranny of computer cabling. But it also brings new threats, potentially opening another door to attack from unscrupulous competitors, hackers and other criminals intent on obtaining or damaging data.

Last year the phenomenon of 'warchalking' spread to the UK from the US. Hackers walk through a business district identifying wireless Lans from the street and writing the access codes on nearby walls and pavement. Anyone with a wireless card and the ability to read the signs can then access the identified network.

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