3D-Secure (or 3DS) protects us against fraudsters by adding a second level of security when finalizing a payment (which also protects you in the process) After entering your bank details, you are redirected to your bank's website to confirm that you are indeed the cardholder used for the payment. Generally, you receive a code via SMS or need to enter your date of birth, for example. Although 3D Secure can be cumbersome in the long run, unfortunately, we have no choice, it is a new EU directive.