2-step verification

[OfftheWall]

How much more protection does 2-step verification add to your email account? And is 2-step verification something you should offer to your clients on your business website as well?

[suwunk]

In addition to logging into Gmail with your email and password, with 2-step verification you’ll have to go through the added trouble of entering a code Google will send to your phone. This will “approve” the computer you’re currently logging in from for 30 days, so you don’t have to do this every time you log in.
Official Google Blog: Advanced sign-in security for your Google account