2FA

American  

abbreviation

1. two-factor authentication.

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Etymology

Origin of 2FA

First recorded in 2005–10

Example Sentences

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

From Salon

Most common services, like Google and Facebook, now support 2FA.

From Salon

"Coinbase will never ask for your password, 2FA codes, or for you to transfer assets to a specific or new address, account, vault or wallet," it said.

From BBC

The effectiveness of 2FA varies considerably depending on the specific implementation method employed.

From Salon

The lack of encryption in SMS messages also renders them susceptible to interception by hackers, further undermining the security of this 2FA method.

From Salon