This store uses PayPal as a payment gateway. This ensures that your payment information is kept confidential. Only PayPal deals with your credit card or bank account information.
When a customer goes to the checkout with their items they are asked to create an account for shipping and invoicing purposes.
Then when they have entered their shipping address they are redirected to the PayPal website where they pay for their items using PayPal's secure gateway server. PayPal then initiates the money transaction.
At no time does PayPal disclose the customer's credit card or bank account information.