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
Secure your devices and accounts: Use strong, unique passwords for all your online accounts and enable two-factor authentication whenever possible.
—
Kurt Knutsson, Cyberguy Report, Fox News, 8 June 2024
The tips include picking a strong password and not sharing it across platforms, keeping an eye out for malicious software, and using two-factor authentication on Facebook and Instagram accounts.
—Tamia Fowlkes, Journal Sentinel, 6 June 2024
Enlarge Getty Images Everyone with a Roku TV or streaming device will eventually be forced to enable two-factor authentication after the company disclosed two separate incidents in which roughly 600,000 customers had their accounts accessed through credential stuffing.
—Kevin Purdy, Ars Technica, 19 Apr. 2024
The social media site owned by Elon Musk said the SEC had not enabled two-factor authentication, and a preliminary investigation indicated the hacker didn't breach X's systems.
—Harold Maass, theweek, 10 Jan. 2024
See all Example Sentences for two-factor authentication 
Kurt Knutsson, Cyberguy Report, Fox News, 8 June 2024
The tips include picking a strong password and not sharing it across platforms, keeping an eye out for malicious software, and using two-factor authentication on Facebook and Instagram accounts.
—Tamia Fowlkes, Journal Sentinel, 6 June 2024
Enlarge Getty Images Everyone with a Roku TV or streaming device will eventually be forced to enable two-factor authentication after the company disclosed two separate incidents in which roughly 600,000 customers had their accounts accessed through credential stuffing.
—Kevin Purdy, Ars Technica, 19 Apr. 2024
The social media site owned by Elon Musk said the SEC had not enabled two-factor authentication, and a preliminary investigation indicated the hacker didn't breach X's systems.
—Harold Maass, theweek, 10 Jan. 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.
Dictionary Entries Near two-factor authentication
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“Two-factor authentication.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/two-factor%20authentication. Accessed 4 Jul. 2024.
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