Security at $6/month: PublicVPN.com

When you use an open hotspot, your network traffic is available for any other user to sample. Passwords can be easily captured.

Unless you first set up a VPN connection. Then, regardless of what network you're on, your traffic is secure. Most of us, however, don't have a VPN server. That's why PublicVPN.com is interesting. Use their server for $6/month.