A mobile device user has entered her user ID and password to access an online account. The user immediately receives a text message with a unique PIN that must be entered before she is granted access to the account.
Which of the following describes the security method being used?
A) Multifactor authentication
B) Full device encryption
C) Biometric authentication
D) Fingerprint unlock

Question

A mobile device user has entered her user ID and password to access an online account. The user immediately receives a text message with a unique PIN that must be entered before she is granted access to the account. 
Which of the following describes the security method being used?
A) Multifactor authentication
B) Full device encryption
C) Biometric authentication
D) Fingerprint unlock

Quizplus · Accepted Answer

The security method being used is multifactor authentication. This is because the user is required to provide two forms of identification: something they know (their password) and something they have (a unique PIN sent to their mobile device).

A Mobile Device User Has Entered Her User ID and Password