[jtokoph]

Using an open network without encryption allows a passerby to listen in to all of your traffic. Unfortunately not all websites are using SSL yet.

[mike_esspe]

If attacker knows network pre-shared key, and intercepted handshake, they can decrypt your traffic.

[jtokoph]

I guess I should have read the comments on this post: http://steve.grc.com/2010/10/28/instant-hotspot-protection-f...