Twofactor fields, email code + authenticator code. One page or two pages for input?

1. What is the correct way to use two-factor authentication?
2. Can two-factor authentication be sent to email?
3. What is the best example of two-factor authentication?

What is the correct way to use two-factor authentication?

On the desktop, you access it by going to Settings > Security and Login(Opens in a new window). Under Two-Factor Authentication, click Edit on the right. On the next screen, select how you'd like to receive your second form of authentication: a text message, authenticator app, or physical security key.

Can two-factor authentication be sent to email?

Note: The 2FA Authentication Code will be sent to the email address of the user. If it's not in the inbox, check the spam folder. You can also allow any user to turn-on email-based 2FA for their own user account (optional).

What is the best example of two-factor authentication?

Examples of Two Factor Authentication

When you use your credit card and are prompted for your billing zip code, that's 2FA in action. Knowledge factors like your zip code may also be passwords or a personal identification number (PIN).