What Is Multi-Factor Authentication (MFA)?

The use of multifactor authentication is comparable to using a combination lock on your own stuff. It's a security mechanism in which individuals are authenticated through more than one required security and validation procedure, so it requires you to have at least two different things to access something. It's built from a combination of physical, logical and biometric validation techniques to secure a facility, product or service. MFA is a great way to protect your nuclear power plants, but it's not a good idea to use it daily. It's hard to remember and even harder to remember multiple passwords. MFA adds an extra layer of security that helps you protect your data, but it doesn't have any way of remembering your password. That means if you're using MFA daily, you'll have to change all of your passwords again and again! Suppose you want to protect your nuclear power plant or bank's data warehouse. In that case, MFA is the perfect solution—but if you don't have access to these resources and are just trying to keep track of your accounts (like Gmail or Facebook), then we recommend using a password manager like LastPass instead. The concept of multifactor authentication has been around since the beginning of time. It's probably the reason why we're all still here today. It's a simple idea: When someone wants to access something, they have to prove their identity in more than one way. That way, even if someone could steal your password (or your girlfriend), they wouldn't be able to get in without having that physical item on hand. We have things like keys and credit cards—they prove that you are who you say you are and if someone stole them from you? Well, then they'd have a lot more trouble getting into things!