In order to keep information sent across the Internet confidential it has to be encrypted so that only the intended recipient can understand it. When an SSL certificate is used, data becomes unreadable to others except for the server you are sending the information to.

SSL - Secure Sockets Layer encryption

SSL is an acronym for Secure Sockets Layer. SSL provides a secure connection, allowing you to transmit private data online. An SSL Certificate enhances online security with SSL Encryption. The SSL protocol is used by millions of businesses to protect customers, ensuring online transactions remain confidential. You will notice a padlock in your browser's address bar.

SSL Security