two-factor authentication
noun
two-fac·tor authentication
ˈtü-ˈfak-tər- 
: 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
Prioritize Cybersecurity Education Firms should educate clients on cybersecurity through live training and videos on security features, such as fraud alerts and two-factor authentication.
—
Expert Panel®, Forbes.com, 22 May 2025
Set up two-factor authentication for all your online accounts.
—Jibin Joseph, PC Magazine, 19 May 2025
Enable two-factor authentication and avoid disclosing security codes.
—Theo Burman, MSNBC Newsweek, 16 May 2025
Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices.
3) Enable two-factor authentication: Enable two-factor authentication whenever possible.
—Kurt Knutsson, FOXNews.com, 12 May 2025
See All Example Sentences for two-factor authentication
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Expert Panel®, Forbes.com, 22 May 2025
Set up two-factor authentication for all your online accounts.
—Jibin Joseph, PC Magazine, 19 May 2025
Enable two-factor authentication and avoid disclosing security codes.
—Theo Burman, MSNBC Newsweek, 16 May 2025
Get my picks for the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices.
3) Enable two-factor authentication: Enable two-factor authentication whenever possible.
—Kurt Knutsson, FOXNews.com, 12 May 2025
See All Example Sentences for 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 2 Jun. 2025.
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