Two-factor authentication (2FA) is an extra layer of security used when logging into websites or apps. With 2FA, you have to log in with your username and password and provide another form of authentication that only you know or have access to.| GitHub Docs
You can choose among multiple options to add a second source of authentication to your account.| GitHub Docs
Passkeys allow you to sign in safely and easily, without requiring a password and two-factor authentication.| GitHub Docs
To confirm access to your account before you perform a potentially sensitive action, GitHub.com prompts for authentication.| GitHub Docs
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