Multi-factor Authentication

Multi-factor authentication (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: knowledge (something the user and only the user knows), possession (something the user and only the user has), and inherence (something the user and only the user is).

Two-factor authentication (also known as 2FA) is a type, or subset, of multi-factor authentication. It is a method of confirming users’ claimed identities by using a combination of two different factors: 1) something they know, 2) something they have, or 3) something they are.

A good example of two-factor authentication is the withdrawing of money from an ATM; only the correct combination of a bank card (something the user possesses) and a PIN (something the user knows) allows the transaction to be carried out.

Two other examples are to supplement a user-controlled password with a one-time password (OTP) or code generated or received by an authenticator (e.g. a security token or smartphone) that only the user possesses.

Conceptual authentication methods image

Readings/Reference Materials:

Multi-Factor Authentication (MFA) helps safeguard access to data and applications while maintaining simplicity for users. It provides additional security by requiring a second form of authentication and delivers strong authentication via a range of easy to use authentication methods. Users may or may not be challenged for MFA based on configuration decisions that an administrator makes.

Videos:

Assignment Questions:

1) What is multifactor authentication and what are some examples?

2) Ending all online crime is not a realistic goal, but simple steps can massively reduce the likelihood you’ll be the next victim. Explain how multifactor authentication works.

3) List 5 reasons to turn on multifactor authentication?

4) Provide at least two additional links to articles related to multifactor authentication.

Get Help for A Similar Question

Free Quote from our Experts