From: Mike N. 

On Mon, 07 May 2007 17:34:57 -0400, Rich Gauszka
 wrote:

>Depending on the time of day in my apartment building AP Grapher running
>on my Macbook can scan 15 to 30 wireless networks. About 25% of them
>have no security. I look at them as potential backup for my DSL.

  If you see any labeled "public wifi", avoid them like the plague unless
you connect with full firewall and immediately connect to your own VPN.
They are probably running the same trojan as all those "free
wireless" nodes you see at the airport.

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