![]() However, it also has significant security concerns due to password reuse and password strength. Password: A password is a knowledge-based factor and the most common form of user authentication.MFA can be implemented with a wide range of factors. For example, the most common option is a combination of something you know (a password) and something you have (a device that generates/receives a one-time code). Something You Are: Inherence-based authentication factors identify a user based on unique attributes such as fingerprints, voiceprints, or facial recognition.Īn MFA system should use a combination of two of these three categories.Something You Have: Possession-based authentication factors require the user to have possession of a particular object such as a smartphone, smartcard, or physical authentication token (like a Yubikey).Something You Know: Knowledge-based authentication factors like a password require the user to remember some secret that will be typed into the authentication page.Most authentication factors fall into one of three categories: An authentication factor is a means of proving a user’s identity to a system. Many different types of MFA exist, using a range of authentication factors. As its name suggests, multi-factor authentication requires multiple authentication factors to gain access to a user’s account.
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