NBG Authenticator app

Strong Customer Authentication is a control process that verifies a card owner (whether credit, debit, or prepaid card) when he/she makes an online transaction and ensures the transaction is carried out by him/her.  

This process is enforced by Directive (EU) 2015/2366 on payment services (PSD2 – L 4537/2018), which was incorporated into the Greek legislation by Law 4537/2018. According to the said Regulation, strong customer authentication identifies the cardholder based on the use of at least two of the following three elements: 

• An element that only you know (e.g., password) 
• An element that is in your possession (e.g., mobile phone) 
• Biometric data (e.g., fingerprint)

Since 01.01.21 for certain e-commerce transactions, depending on the amount and other transaction features, it is not enough to enter the card data (number, expiry date, three-digit security code); users must also enter two security elements.

You have three options in carrying out online transactions with the added security of Strong Customer Authentication: 

• through Mobile Banking 
• through Internet Banking 
• though the NBG Authenticator app 

The NBG Authenticator app is a way to approve online transactions that require strong user authentication. You can use the app even if you aren’t an NBG Internet & Mobile Banking user.

If you have the NBG Mobile Banking app and have enabled the notifications, you do not need to download the NBG Authenticator. You can make secure transactions via Mobile Banking.

You can register using your credit (primary or additional), debit, or prepaid NBG card. You will be asked to activate your fingerprint or Face ID for easy connection. The app is supported by Android 6 and above devices if they have fingerprint functionality.