What is two-factor authentication on Workplace?

Two-factor authentication, also known as 2FA, two-step verification, TFA or multi-factor authentication, is a second layer of security that can be used on a website.
Using two-factor authentication decreases the likelihood of an attacker impersonating a user and gaining access to their account. The authentication method requires a password and username as well as an extra piece of information that only the individual should know.
Workplace supports two-factor methods such as SMS or authentication apps like Google Authenticator and Duo Mobile. Workplace also supports the use of security keys on approved internet browsers.
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