Setting up Two-Factor Authorisation (Sometimes referred to as 2FA) is a very sensible precaution. In our "Changing your Password" guide we recommend using 2FA, and this guide will show you how. We'll also briefly talk about the Recently Viewed Devices option in account settings.
This guide is split into three sections, not including this introduction:
If you are uncertain as to which you're on, please click (or tap) here.