https://www.theregister.co.uk/2019/08/23/github_upgrades_its_twofactor_authentication_with_webauthn_support/

GitHub has announced support for the Web Authentication (WebAuthn) security standard.

GitHub already supports two-factor authentication (2FA) via SMS texts (the least secure option, given that phone numbers can be hijacked and SMS messages intercepted), one-time password authentication apps, or U2F (Universal Second Factor) security keys.