Multi-Factor Authentication (MFA)

What Is Multi-Factor Authentication (MFA)?

Multi-Factor Authentication (MFA) is an authentication method that requires more than one form of authentication to verify a user's identity. It is a security measure that requires users to provide two or more pieces of evidence (or factors) to gain access to a system or application. These factors can include something the user knows (such as a password or PIN), something the user has (such as a security token or key fob), or something the user is (such as a biometric identifier). MFA is used to protect against unauthorized access to sensitive data and systems, and is often used in combination with other security measures such as encryption and firewalls.

Description

Multi-Factor Authentication (MFA) is an authentication method that requires more than one form of authentication to verify a user's identity.

Usage and Examples

MFA is used to protect against unauthorized access to sensitive data and systems, and is often used in combination with other security measures such as encryption and firewalls. For example, a user may be required to enter a username and password, and then provide a one-time code sent to their mobile phone or email address. Another example is a user being required to enter a username and password, and then scan their fingerprint or face to gain access. MFA is also used to protect online accounts, such as banking and social media accounts.