Securing your cryptocurrency with Google Authenticator? That decision may make you angry one day. But that's okay because Authy is here to save the day.

The first thing you need to learn when you start working with Bitcoin is to set-up 2FA. The most common forms of two-factor auth today are standard telephony and security tokens, which come in both the soft and hard variety.

If we took hard U2F tokens off the table, we’re left with software and telephony. Which of the two would you choose? Well, it depends. Let’s explore.