Encryption: All payment gateways encrypt sensitive credit card information before they pass it along to the processing bank.
A gateway leaves NO Customer Data on your Website or Computer but securely resides behind the gateway’s firewall.
Virtual Terminal: A virtual terminal is a browser-based version of the physical credit card terminal. A virtual terminal allows you to input a customer’s credit card information and process a transaction directly through your computer’s web browser via an online web form.
Virtual terminals can also be set up to run on mobile devices, including smartphones and tablets. In a retail setting, you can attach a USB-connected credit card reader and take advantage of lower, swiped (or card-present) processing rates.