Secure your internet connection at Starbucks

As someone who works from a home office I often am looking for a change in scenery and find myself up at the local Starbucks, that way I can get a great cup of coffee and get some work done at the same time. Using the T-Mobile HotSpot service I am easily able to connect and get to work, except with the HotSpot connection my internet traffic has always been unsecured and therefor open for snooping. It turns out that T-Mobile offers a Connection Manager software for Windows but nothing for Mac.