3D Secure is a fraud prevention system that protects you from unauthorised online use of your Visa Debit card.
When you purchase goods or services online, you may be prompted to enter a one-time passcode, sent to your mobile phone by text message, to authorise the transaction and confirm that the card is yours.
You have a set amount of time and a number of attempts to enter the passcode correctly. If you do not enter the passcode correctly, you will be unable to complete your online purchase.
The passcode will only be valid for the online purchase you have received it for.
When you are shopping online using 3D Secure and we don’t have a mobile number to send you a one-time passcode, you’ll be asked to provide it by calling us on the telephone number provided on-screen. If you would like to update your mobile number now, you can do so by calling 0818 200 370 or +353 1 250 0370.