Two-factor Authentication: What You Need to Know by androidcentral.com
You should use two-factor authentication on every account that offers it. Here's an explainer of what it is, and why you want it.
You see a lot of talk on the internet about two-factor authentication (or 2FA as it's commonly called) but most times its just people like us telling you to use it. And we'll continue that trend and start this bit of prose by telling you to use 2FA whenever and wherever you can. But we're also going to let you know what it is, and why it's important that you use it. Read on.