SecurePay explains

"SecurePay Online Payments makes sure that customer credit card details are transmitted between your bank, the customer’s bank and the credit card schemes in a highly secure, Payment Card Industry Data Security Standard (PCI DSS) compliant manner. This is a win–win for you and your customers. Your business doesn’t have access to complete customer credit card numbers, which reduces business risk for you, helps to reassure customers and combats online fraud."