All transactions are encrypted to protect sensitive information (including the buyer's credit card number).
"Encryption" is a process by which the information is converted into a form that cannot be easily understood by unauthorized people. Encryption is essentially a way to "code" the information before it is transferred over the internet. Once the information is received at its final destination, it is decoded, or "decrypted."
Before you invest in an online store or an e-commerce solution, consider your ROI (return on investment): a simple Paypal solution may be all you need to start selling your product or service online.