Google and Facebook both have a security feature which will require you to enter a code sent to your phone whenever you log in from a new computer. I highly recommend you to turn this security feature on!

Cracking passwords is getting easier for the bad guys, but turning this feature on will require them to also enter an additional security code sent to your phone, which (hopefully) the bad guys don’t have/can’t intercept!

For more info:
Google 2-step verification
Facebook login approvals

Why? For extra security! It’s no fun if your email or Facebook account gets hacked. Plus, you know don’t want the bad guys learning all this information about you or spamming your friends. It’s especially important to protect your email account because your other important accounts (bank, credit card, Paypal, Facebook, Amazon.com, etc) are often linked to your email account – you don’t want someone who has access to your email account to also gain access to all these other accounts!

(I used to blog about user security for the everyday person, but stopped for various reasons. Feel free to peruse my old userbesafe blog, although I’m sure some things have changed/been updated.)