How does Mastercard 3D Secure work?
Mastercard 3D Secure is there to help protect you against unauthorised use of your card.
When using your thinkmoney prepaid Debit Mastercard® to shop online or on your mobile, you might be asked to enter a One Time Passcode (OTP) by a participating retailer.
You can select which method you prefer – text or email - at the time you are making your purchase. We'll text or email this to you using the details we have saved for you.
You'll then need to enter the secure passcode we send you to confirm your identity and complete your purchase. If you've entered your secure passcode correctly then your authentication will be successful.