3D-Secure is the secure protocol designed to ensure enhanced security and strong authentication for you when you use your debit or credit cards online. Depending on the card type, it is called “MasterCard SecureCode” or “Verified by Visa”. When you transfer money, you may be asked to provide a special security code order to authorize the online transfer when prompted in the Credit Card payments page. If you don’t know your 3D-Secure passcode or password, and you are not being given the option to enroll online in the bank’s pop up screen, then you will need to contact your bank that you issued your card.