MSOfficeWorks is dedicated to providing secure online payment methods. That’s why we've added an extra level of security for Visa and MasterCard payments, which protects you from the unauthorized use of your credit card. 3-D Secure technology consists of the programs Verified by Visa and MasterCard Secure Code. After you enter your credit card details in our online store, a new window will appear, requesting your personal security code. Your financial institution will authenticate the transaction within seconds, as well as confirm that you are the individual making the purchase. If you haven't yet registered with Verified by Visa or MasterCard SecureCode, you'll need to activate this feature first. You can do this during the payment process, or activate it in advance through Your Online Banking [ do the search on google : *yourbankname + verified by visa ] for Visa or ( *yourbankname + register masterard securecode ) for MasterCard. After you register, you can use the security code for all your online transactions. More and more online stores are making this extra security code compulsory. Verified by Visa: Best Regards & Thanks.