Ok. An attempt at making this even more simple.
Two-factor authentication (2FA) adds an additional secure step to your logins. Where right now you might login to a website or app using your username/password, you’ll be adding a security code as well.
Install a 2FA app:
Android:
– Authy
– Google Authenticator
iPhone:
– Authy
– Google Authenticator
The one time setup (for Amazon, for example):
1. Go to Amazon.com -> Account -> Login & Security -> Two-Step Verification (2SV) Settings
2. Walk through directions
Every app/site will walk you through this, and they might be somewhat different. But the concept is the same. You need to add an account in Authy (or Google Authenticator) when it’s time to scan the QR code. Menu -> add account.
Now that you have it set up, you have an account in Authy for Amazon that provides a new 6-digit security code for Amazon that refreshes every 30 seconds.
When you go to login to Amazon, it will ask for your username/email and password first. Then it will ask you for your 2FA code. You open Authy and use that code.
Hope that helps.