The RCB debit MasterCard™ uses the SecureCode™ feature which allows you to select your own private code for online transactions. Similar to entering a PIN at an ATM, you must enter your SecureCode™ in a window provided by the issuer before an online transaction can be completed. Within seconds, the issuer confirms your identity. As a cardholder, you enjoy the piece of mind knowing that no one else has access to your SecureCode™. For more information, call us at 781-942-5000.