We’ve covered a lot about EMV, but what about improving security for online and Card-Not-Present transactions? That’s where 3-D Secure comes in.
3-D Secure allows a card holder to authenticate himself while making an online payment.
In a traditional credit card transaction, a payment request is presented to the issuing bank for authorization. The Issuing bank authorizes the transaction based solely on the funds available to the card holder.
With card present, the magnetic strip on the card can be read and a signature collected. This process has now been largely superseded by Chip and PIN which gives the card holder the opportunity to identify himself via a secret PIN code.
An E-commerce transaction is conducted online, without the possibility to access the card physically. Un-authorized usage and fraud are therefore more likely.
3-D Secure allows transactions to be conducted in safety online, greatly reducing the risk of fraud and chargebacks.
How 3-D Secure Works?
When a payment request arrives at the merchant or payment gateway, the Merchant Plug In (MPI) component is activated. The MPI talks to Visa or MasterCard to check if the card is enrolled for 3-D Secure. If the card is not enrolled, this means that either the bank that issued the card is not yet supporting 3-D Secure or it means that the card holder has not yet been registered for the service. If the card is enrolled, the MPI will redirect the card holder to the 3-D Secure authentication web page for the issuing bank; the card holder will then identify himself. The MPI will evaluate the reply from the bank and, if successful, allow the transaction to proceed for authorization. The transaction could still fail for lack of funds or other reasons but is more likely to be approved because of the authentication.
3-D Secure allows 3 domains to work together.
Domain 1: The card holder has the peace of mind that his card is not used without his authorization.
Domain 2: Merchants are protected from fraud and can provide the product and service without delay or extra costs.
Domain 3: Banks see that the transaction has been authenticated and are more likely to approve the transaction, to the convenience of the card holder.
Implementation of 3-D Secure:
Visa is called Verified by Visa.
MasterCard is called Secure Code.
Amex is called SafeKey.
JCB is called J/Secure.