To make Git and GitHub work together, developers will now have to use personal access tokens.
Authy ) installed on your mobile device.
After enabling 2FA on your GitHub account, you will have to use a new mobile app code to gain access. This should be considered mandatory for all developers and companies using GitHub.
Conclusion
While GitHub's effects on developers aren't drastic, it does change how you authenticate. Make sure your developers are up to date with this new authentication method and have enabled 2FA to ensure your accounts (and your code) are secure.
Source: BairesDev