Click on the miniOrange 2-factor plugin visible in the menu to the left.
You can see the list of Authentication methods here. Click on the Configure button beneath the the miniOrange QR Code Authentication tile.
Go to the Google Play Store or the Appstore and install the miniOrange authenticator app, after successful installation of the miniOrange authenticator app click on Configure your phone button.
miniOrange-authenticator app
Scan the given QR code with the miniOrange Authenticator app.
After this setup, miniOrange QR authentication gets promoted as a second security layer when loggin into WordPress.
Now your account is secure and only after verification will you be able to login.