Two-factor authentication (or two-step authentication) is an important security measure that adds a second layer of protection in addition to your password. Adding this additional security layer makes it much harder for hackers to break into your accounts.

Do I really need two-factor authentication?

Two-factor authentication does improve security, but it's not the solution in all cases. Adopting the wrong 2FA solution can burden users with little security benefit. Understanding your users and the security threats you face is the key to a successful two-factor authentication deployment.

What happens if I don't have two-factor authentication?

If you're signing in and don't have a trusted device handy that can display verification codes, you can have a code sent to your trusted phone number via text message or an automated phone call instead. Click Didn't Get a Code on the sign in screen and choose to send a code to your trusted phone number. 2.