What is the most secure type of authentication?
A) Something the user knows such as a user ID and password
B) Something the user has such as a smart card or token
C) Something that is part of the user such as a fingerprint or voice signature
D) Combination of all of the answers is correct

Question

Quizplus · Accepted Answer

The most secure type of authentication is a combination of all three factors: something the user knows, something the user has, and something that is part of the user. This is known as multi-factor authentication (MFA) and provides multiple layers of security.

What Is the Most Secure Type of Authentication