An SSL certificates are used to make your personal information protected, particularly when it comes to online transactions. It’s a mechanism that works between a user’s browser and the website the user is connecting to. In its software, the website has an SSL certificate issued by a trustworthy authority. Web browsers (i.e. Internet Explorer®, Firefox® and Chrome™) recognize these certificates. When confidential info needs to be exchanged, SSL is used to encrypt the information before it is sent, and then to decrypt it at the other end, when it has been received.
This ensure that the website activity, from its own sensitive information to that of its browser is secure. This is especially important if the business is involved in handling online transaction. Online Buyers and visitor know this stuff. Banks, for instance, have warned them to check for the small padlock icon that appears on their browser screen when SSL is in use