SSL means Secure Socket Layer.  The certificates are used to secure websites so that third parties cannot intercept information transferred between your computer and their website.

Here is how a SSL works: Every SSL Certificate is created for a particular server in a specific domain for a verified business entity.  An SSL Certificate is issued by the Certificate Authority (CA), a trusted authority.  When the SSL handshake occurs, the browser requires authentication from the server.  A customer sees the organization name when they click certain SSL trust marks (such as the VeriSign Secured™ Seal) or use a browser that supports Extended Validation. If the information does not match or the certificate has expired, the browser displays an error message or warning.

SSL certificates are usually used by e-commerce businesses, banks and other operations that involve credit and debit card transactions. SSL certification is a must in these cases, to keep financial details safe as it is being transmitted. Without an SSL certificate, hackers could easily access and misuse personal information.

An SSL certificate can and should actually be used by any website that uses a form or other method to transmit information. From a simple e-newsletter sign-up to an account login, any transmission should be protected by the basic security offered by an SSL cert.  If you use FTP to transfer files, use any shared work flow or project management software you should also consider getting an SSL certificate.

SSL certificates protect your control panel login, network traffic, any transfer of files, databases and much more. Basically, if your website collects or handles any information you want to protect from hackers or intruders, you should purchase
SSL Certification.