Hi all, Apple prompted me to use two-factor authentication, and I finally enabled it. I got a follow-up email confirming it, and it said that I had a limited time to easily turn it off. I figured, an extra measure of security wouldn't hurt. But then, I only have two Apple devices at any given time nowadays (my desktop iMac, and my iPhone). I'm afraid that if I ever lost my iPhone…. then what? If my iMac somehow needed to send me "Authentication Code" (for example doing a clean install on iMac upgrade) and I no longer have my iPhone… then am I locked out of my Apple ID for good?