Multi Factor authentication is basically using multiple factors to authenticate a user, like texting a number to the person's cellphone to authenticate them if

Multi Factor authentication is basically using multiple factors to authenticate a user, like texting a number to the person's cellphone to authenticate them if they are visiting from a IP that is not familiar with the system. Its basically using a second piece of information besides a password to ensure that a user is who they say they are. The sending a text message with a number is a real popular way of doing this. Think as well as a pin and a credit card at an ATM. Sure you have to use your ATM card at the ATM to prove your identity but you also have to use a PIN to add an extra layer of security. This significantly reduces the risk of a breach on someones account.