What is multi-factor authentication?
Multi-factor authentication (MFA) can greatly enhance security while delivering a positive user experience. MFA is an authentication method in which a computer user is granted access only after successfully presenting two or more pieces of evidence, or factors, to an authentication mechanism.
* The 2019 State of Password and Authentication Security Behaviors Report, Ponemon Report, 2019
Types of multi-factor authentication
You have probably used multi-factor authentication (MFA) before without realizing it. The bank has higher confidence because a wallet thief cannot drain your account unless they also know your PIN. MFA is a way for the service you use to authenticate your identity, by asking you to present two or more pieces of evidence (factors) during the login process.