Many may not be aware that there is a movement by the biggest tech players to eliminate passwords. This is a good thing. You may already be seeing some of it when your phone comes up asking if you're logging in and maybe giving a simple code to select.
In this article they give you some details on how it works, but don't worry, using it is simpler than understanding the details. Oh, and don't mistake this for the old SMS codes. That method has long been insecure.