What is two-factor authentication, and why do experts say it's the key to better online security? Two-factor authentication—often referred to as two-step authentication and 2FA—is a method for ...

Two-factor authentication is a security process that requires users to provide two distinct authentication factors to access an account. By introducing a second layer of verification in addition ...

Investopedia / NoNo Flores Two-factor authentication (2FA) is a security system that requires two distinct forms of identification in order to access something. Two-factor authentication can be ...

Two-factor authentication (2FA) is a security access method that requires users to provide two forms of identification (aka factors), typically a password in ...