You need to be EMV 3DS Compliant.

If you currently use 3-D Secure version 1, after 17 October 2021, fraud chargeback liability protection for approved Verified by Visa and Mastercard Securecode authenticated transactions will no longer apply. This means you may receive fraud related chargeback transactions which you will be expected to pay even though the transactions were successfully authenticated.

To find out how send an email to support@transact.nab.com.au or phone 1300 369 852 option 3 then option 1.

Now is the time to update to EMV 3DS.

Mobile access

NAB Transact now has a version formatted for mobile browsers, meaning you can accept card payments on your mobile phone or tablet computer.
The new "mobile virtual terminal" functionality is available to all existing NAB Transact customers at no extra cost.

To access NAB Transact on your mobile go to https://transact.nab.com.au/mobile/ 
Now, if you want to accept credit card payments away from the office, but don't have a card acceptance terminal, you can take payments simply by logging into NAB Transact on your mobile and entering the card details. You can also view up to 14 days history through the mobile login or 12 months through NAB Transact on your computer.

Performance of NAB Transact

Please refer to www.nab.com.au/support  for updates.