two-factor authentication

American  

[too-fak-ter aw-then-ti-key-shuhn] / ˈtuˈfæk tər ɔˌθɛn tɪˈkeɪ ʃən /

noun

Digital Technology.

1. a process of establishing identity and verifying permission to access an electronic device or computer network that requires two different forms of authorization, such as a password and a fingerprint scan. 2FA

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Etymology

Origin of two-factor authentication

First recorded in 1990–95

Example Sentences

But she said the key is "prevention and education", including limiting personal information online, using strong passwords and two-factor authentication, and being cautious before sending money or personal images.

From BBC

To add security to your email, social media and other online accounts, enable what is called “two-factor authentication,” or “2FA.”

From Salon

To fix, start with key accounts such as email and banking and enable two-factor authentication if that’s an option.

From The Wall Street Journal

Work-issued phones can be an even bigger hassle, since personal financial accounts often use that number for two-factor authentication.

From The Wall Street Journal

And if you log in with a passkey instead of a password, sites typically won’t ask you for a second level of identity verification, such as a two-factor authentication code sent to your phone.

From The Wall Street Journal