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Question about VPNs and Hotspots....

Anything you do over an unencrypted wireless can be read in plain text by anyone sitting nearby with the right software(wireshark). So if all of your traffic is encrypted through a VPN then people can still see your traffic, but they won't have any idea what's in it unless they can decrypt the information inside the packets.

I don't know how Hotspot Shield works, but whenever I'm forced to use an open wireless connection I always SSH into my home network and tunnel everything through SSH which in effect encrypts my traffic so nobody can read it.
 
In that link you posted, the guy talks about using hamachi as a VPN. I wasn't aware that Hamachi acted as a traditional VPN in encrypting your regular traffic. For example:

I know that traditional VPN's do encrypt your data. Whenever I'm at a hotspot I will connect to my work VPN to prevent my neighbors from reading any sniffed packets. I already have Hamachi installed on all my computers simply for file sharing between them. I didn't think that it encrypted all your data, I just thought it encrypted data shared explicitly between the two computers (eg I browse to my home computer from work). Can we get any confirmation on this?
 
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