Hello friends,
I have recently enabled 2 factor authentication using google authenticator for different exchanges such as coinbase, kraken and some more applications.
My question is, what happens if my phone breaks or get lost? In my new phone if i install google authenticator with same phone number, will it automatically get backed up?
if not, what option will I have if phone is lost or broken?
Thanks

I'm using coinbase here as an example, as im imagining Kraken & Bittrex will all be very similar to this.