multi-factor authentication

noun

mul·​ti-factor authentication ˌməl-tē-ˈfak-tər- How to pronounce multi-factor authentication (audio)
-ˌtī-
variants or less commonly multifactor authentication
: a method of verifying the identity of a person (as for granting access to a system) by requiring a password and one or more additional forms of authorization (such as a code, a fingerprint, or a smartphone app)
You may also wish to sign up for multi-factor authentication wherever possible as an added layer of security.mashable.com
Multi-factor authentication: This electronic authentication method requires users to present at least two pieces of evidence proving their identity.sfgate.com
Multifactor authentication uses a combination of two or three different ways to authenticate your identity. The first is what you know—usually a password, but [it] can also include your response to a challenge question. … The second is what you have. This could be a physical device, for example, a smart card with a chip in it or a hardware token that generates one-time-only passwords. … The third is who you are, as indicated by some biometric such as a fingerprint or an iris scan. Almost every multifactor approach uses a password, and then combines this with the second or the third factor or both.eWeek.com
Let's say you're going to sign into your work or school account, and you enter your username and password. If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world! But if you have multifactor authentication enabled, things get more interesting. The first time you sign in on a device or app you enter your username and password as usual, then you get prompted to enter your second factor to verify your identity.support.microsoft.com
compare two-factor authentication

Examples of multi-factor authentication in a Sentence

Recent Examples on the Web To set up another form of multi-factor authentication for your Norton account, such as authenticator apps, hardware security keys, or SMS verification, head over to your Norton account page and set up your authentication method. PCMAG, 27 Sep. 2024 By implementing regular audits, enforcing multi-factor authentication, and monitoring account activity, organizations can mitigate these risks. Tony Bradley, Forbes, 10 Oct. 2024 Robust Identity and Access Management – T-Mobile has committed to broad adoption of multi-factor authentication methods within its network. Umar Shakir, The Verge, 30 Sep. 2024 Opt for robust multi-factor authentication methods like biometrics, physical security tokens, or standalone authentication apps to secure your online accounts. Alex Vakulov, Forbes, 20 Sep. 2024 See all Example Sentences for multi-factor authentication 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'multi-factor authentication.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

2000, in the meaning defined above

Time Traveler
The first known use of multi-factor authentication was in 2000

Dictionary Entries Near multi-factor authentication

Cite this Entry

“Multi-factor authentication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/multi-factor%20authentication. Accessed 31 Oct. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!