Picture this; you are sitting in your local coffee shop using their Wi Fi and your laptop to pay your bills. It all seems so easy; you enter your bank account log in information and start paying your bills. Nothing could be easier right? Right, but at same time as you are logging in and paying your bills, that guy sitting a few tables away could be stealing all of your banking and credit card info if your bank does not have an X 509 digital certificate in place.
The X 509 Provides Full SSL Encryption Security
As most businesses that allow you to enter information such as this to pay bills or pay for things do not want anyone like the guy across the room accessing your data as you enter it, they turn to a Certificate Authority to set them up with an X 509 certificate and the accompanying security protection. This way when customers like you use a public Wi Fi connection you do not have to worry about your information being compromised.