Here's how you can double check...
1) Click on the your user icon in the top right corner of your Chrome window
2) Choose MANAGE YOUR GOOGLE ACCOUNT
3) Click on SECURITY (on the left side of the screen)
4) Scroll down a bit until you get to the section titled - SIGNING INTO GOOGLE
5) Check to see that 2-step verification is on..
6) If it is on.. GREAT! You can close out. If it is not on, click on the link to set it up and Goggle will walk you through it.