These changes are due to the EU-wide PSD2 Directive.
It is a method of confirming your online transactions as an alternative to entering SMS codes.
In order to use Mobile Authorization, it is necessary to have the Citi Mobile® app.
Answer these 2 simple questions and we will find the fastest way to activate this service for you.
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Already have Mobile Authorization enabled?
Find out how to use it >
Install the application on your phone to start using Mobile Authorization.
Find the app in your phone's dedicated store by typing Citi Mobile or click on the appropriate button on your phone:
The PSD 2 Directive (Directive (EU) 2015/2366 of the European Parliament and of the Council of 25 November 2015 on payment services in the internal market) is an EU directive implemented under the Payment Services Act which, among other things, introduces a requirement for banks to use so-called strong customer authentication (SCA) for some operations and transactions.