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From a cursory read the options for 2FA are: - SMS - Mobile app What if someone doesn't have a phone?

• psanford 4y ago
  You can use a FIDO2 key, a built-in platform authenticator, or a desktop TOTP application.
• singlow 4y ago
  Any TOTP app will work, but most people will use an app on their phone. Plenty of desktop apps exist. There are also usb key devices supported.