How do I obtain a two-factor authentication key to log in with?

How do I obtain a two-factor authentication key to log in with?

There are two ways to obtain an authentication key. If you are using a smartphone, download the Authy app for your iPhone or Android mobile phone. Every time you log in, you will need to generate a secure token using the Authy app. If you don't have a smartphone, you can receive the token via SMS instead.

For instructions on how to set up two-factor authentication for your PayFast PayFast account, read this article.