2FA (Two Factor Authentication)

2FA (Two Factor Authentication) is a process that uses two steps to authenticate a user.

Rather than just asking for a single piece of information to verify a user, an additional step is added. Such as using a temporary identity token good for minutes, vs. a forever password, that is sent to a cell phone or from an authenticator and is required to access an account.

Often, a third-party authenticator (TPA) app enables two-factor authentication, usually by showing a randomly generated and frequently changing code to use for authentication.

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