Two step verification is a feature where after you log into a website or an application you will be sent a code to your mobile number or email address where you then have to enter it to verify that you are the one accessing your account and not somebody else who has stolen your password. Two step verification is available for most applications and websites. You can enable it through security and privacy settings. You should always have two step verification enabled on any application or website that you use. It’s better to secure your account then regret it later down the road.