two-factor authentication

noun

two-fac·​tor authentication ˈtü-ˈfak-tər- How to pronounce two-factor authentication (audio)
: a method of verifying the identity of a person (as for granting access to a system) by requiring a password and an additional form of authorization (such as a code, a fingerprint, or a smartphone app)
abbreviation 2FA
compare multi-factor authentication

Examples of two-factor authentication in a Sentence

Recent Examples on the Web For instance, demonstrate how using two-factor authentication can help prevent fraud, making users feel safer and more empowered rather than overwhelmed. Expert Panel®, Forbes, 21 Oct. 2024 That said, the site includes welcome security features, such as an SSL certificate, two-factor authentication, and basic DDoS protection. PCMAG, 12 Oct. 2024 Secure passwords, two-factor authentication, and encryption tools can help protect your information. Barbara Booth, CNBC, 11 Oct. 2024 The Tapo app supports two-factor authentication, which is optional. Jennifer Pattison Tuohy, The Verge, 15 Aug. 2024 See all Example Sentences for two-factor authentication 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'two-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

1990, in the meaning defined above

Time Traveler
The first known use of two-factor authentication was in 1990

Dictionary Entries Near two-factor authentication

Cite this Entry

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

Last Updated: - Updated example sentences
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