3D secure is an initiative from Visa and Mastercard to add an extra security step to the online purchase process. This is comparable to entering a CHIP or PIN during the payment process in stores.
The 3D secure pop-up will show the personal message that was used to register 3D secure. The message is displayed during the payment process to ensure that it is a safe environment. 3D secure is a pop-up fully managed by the bank you are connected to.
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