When you connect to a website that has SSL security, you will see “https” in front of the web address instead of “http”. This means that the website you are visiting has purchased a certificate to place on their website to protect their visitors from being watched and verify they are who they say they are. SSL adds another layer to your browsing that encrypts any connections you have with that website. Personal information, credit card numbers, passwords, etc, are all encrypted so that when you send that information from your computer to that website, it can’t be seen by someone else on the same network.
Please make sure that you only interact with websites that have the green locked padlock icon to the left of their web addresses. If it is not there, then any information you give that website could be intercepted by someone else who could be watching the connection.