Smartphone Setup
There are several free and paid-for apps available for Android and iOS devices, and they work with many sites that offer or insist on two-factor authentication for security of an account.
Recommended free apps
FreeOTP
Android,
iOS
Google Authenticator
Android,
iOS
Microsoft Authenticator
Android,
iOS,
Windows Mobile
or search your app store for 'OTP authentication' for a range of alternatives included paid-for apps with enhanced features.
Set up two-factor authentication
To get started, select
'Use 2FA' then re-enter your username and password and follow the instructions provided on the following screen.