Have you ever noticed when you go to your bank's website, or paypal, or some other website that has sensitive information, that there is a lock icon next to the web address? On Chrome it looks a little like this:
That lock means that your connection to that website is encrypted and protected from being intercepted by bad guys. That's why it's safe to send your credit card information to an ecommerce store if the lock icon is present.
Most websites (like ATP) don't use encryption if there are no financial details being sent. The data is always sent in the clear and can theoretically be eavesdropped on by governments and others.
There is a movement afoot to try to make encryption the norm across the entire web, and as a web developer I applaud the idea. Privacy is a good thing and I'm going to do my part by moving ATP to a fully encrypted site. I'll be migrating it over the coming week, and with luck nobody should notice a thing. Eventually you'll just automatically notice the green lock icon in your browser when you visit ATP. When that happens, you can feel good knowing that absolutely nobody can see what is being sent back and forth between your browser and the ATP website.
I mention it now to give a heads-up to everyone, in case there are any issues that arise from this code change, you'll know where they came from.