Indeed. That was the first paragraph of my comment.
The second responded to the comment about never using open wifi networks, where I took open to mean unencrypted. My comment is that open and encrypted networks are synonymous (or so I have been told) if the person who wants to capture your traffic knows the network password.
Which loops back to the first point, that you should only use encrypted services on networks you don't have full faith in.
The password is your access to the network, not the encryption key for your messages.