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
Neglecting basic security like two-factor authentication, reusing passwords or shopping on untrustworthy websites can leave you exposed.
—
Kurt Knutsson, Cyberguy Report, Fox News, 22 Dec. 2024
The following apps are available for both iOS and Android and are equipped with security features like end-to-end encryption and two-factor authentication:
Signal
WhatsApp
Discord
Dust
Threema
Diana Leyva covers trending news and service journalism for The Tennessean.
—Diana Leyva, The Tennessean, 6 Dec. 2024
The browser data targeted includes session cookies which are a hacker favorite as they can be used to bypass two-factor authentication protections.
—Davey Winder, Forbes, 9 Dec. 2024
As one example, the company implemented mandatory two-factor authentication with physical security keys for all people who interact with T-Mobile systems, including all contractors in addition to employees.
—Lily Hay Newman, WIRED, 4 Dec. 2024
See all Example Sentences for two-factor authentication 
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Kurt Knutsson, Cyberguy Report, Fox News, 22 Dec. 2024
The following apps are available for both iOS and Android and are equipped with security features like end-to-end encryption and two-factor authentication:
Signal
WhatsApp
Discord
Dust
Threema
Diana Leyva covers trending news and service journalism for The Tennessean.
—Diana Leyva, The Tennessean, 6 Dec. 2024
The browser data targeted includes session cookies which are a hacker favorite as they can be used to bypass two-factor authentication protections.
—Davey Winder, Forbes, 9 Dec. 2024
As one example, the company implemented mandatory two-factor authentication with physical security keys for all people who interact with T-Mobile systems, including all contractors in addition to employees.
—Lily Hay Newman, WIRED, 4 Dec. 2024
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 Dec. 2024.
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