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
Things such as a fallback password and/or two-factor authentication codes, even codes that are securely stored off device, for example.
—
Davey Winder, Forbes, 22 Jan. 2025
Adding two-factor authentication offers an extra layer of protection by requiring both your password and another proof of identity, such as a one-time code sent to your phone, to access your account.
—Andreina Rodriguez, CNBC, 21 Jan. 2025
Use strong passwords and two-factor authentication.
—Christopher Elliott, USA TODAY, 17 Jan. 2025
Enable two-factor authentication wherever possible to add an extra layer of security to your accounts.
5) Beware of snail mail scams: While most people focus on digital threats, physical mail scams can also follow a data breach like this.
—Kurt Knutsson, Cyberguy Report, Fox News, 13 Jan. 2025
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Davey Winder, Forbes, 22 Jan. 2025
Adding two-factor authentication offers an extra layer of protection by requiring both your password and another proof of identity, such as a one-time code sent to your phone, to access your account.
—Andreina Rodriguez, CNBC, 21 Jan. 2025
Use strong passwords and two-factor authentication.
—Christopher Elliott, USA TODAY, 17 Jan. 2025
Enable two-factor authentication wherever possible to add an extra layer of security to your accounts.
5) Beware of snail mail scams: While most people focus on digital threats, physical mail scams can also follow a data breach like this.
—Kurt Knutsson, Cyberguy Report, Fox News, 13 Jan. 2025
See all Example Sentences for two-factor authentication
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 30 Jan. 2025.
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