SSL (Secure Sockets Layer) certificates are a simple but essential way to keep sensitive information safe while giving customers the confidence they need to complete a transaction online. SSL encrypts sensitive, private data, such as credit card numbers and bank account details. Normally, data on the web is sent in clear text from computer to computer until its destination is reached. Any of the computers along the way can see that information – this is where the gap is presented to cyber attackers who are looking for soft targets. Google also likes your website more when it is secured sites (even if your website doesn't do online transactions), giving anyone who protects their website a boost in search engine rankings.