PSA Banque France SecurePlus is an application which allows strong authentication thanks to two independent factors using biometrics or via a PIN code.
To use the app, you must first be registered (or enrolled). For registration, you will need your identifiers (either with a QRcode or with the following information: login, activation code) provided directly by your bank.
When registration is complete, a notification will appear on your mobile phone asking you to authenticate. To validate your transaction, simply use the biometrics on your phone or a previously created PIN code.