**The main difference between http:// and https:// is It's all about keeping you secure**

HTTP stands for HyperText Transport Protocol, Which is just a fancy way of saying it's a protocol (a language, in a manner of speaking) for information to be passed back and forth between web servers and clients. The important thing is the letter S which makes the difference between HTTP and HTTPS.

The S (big surprise) stands for "Secure". once your in a  websites  shopping cart  or check out section  take a look at the address in the web browser, does say  http://.  or https://

if the shopping cart section does not have a " S" This means that the website is talking to your browser using the regular 'unsecure' language. In other words, it is possible for someone to "eavesdrop" on your computer's conversation with the website. If you fill out a form on the website, someone might see the information you send to that site.