Important information when using Google authenticator for two factor authentication.
If you are using your phone with google authenticator to get into your crypto trading accounts you must be careful.
When you first setup two factore(2FA) authentication on any of the crypto exchanges you will be given a secret key.
You need to store this secret key somewhere safe, it is critical.
If you do not save you secret key and lose break or sell your phone you will be unable to access you trading accounts again.
If you havent saved your secret key, disable 2FA then reenable it and make sure you save the secret key this time.
The Crypto Machine.