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Elaine installs a copy of NetStumbler
on a laptop and drives around the neighborhood with a GPS. She
compares the names and locations of the Wi-Fi sites with a similar
database available online. Her research shows that most of the older
Wi-Fi access points that were open are now either closed or have been
removed from service. Of the new Wi-Fi access points that have been
deployed, most are closed.
Simson L. Garfinkel
2008-03-21