About licenses for GitHub Advanced Security
If you want to use GitHub Advanced Security features on any repository apart from a public repository on GitHub.com, you will need a GitHub Advanced Security license, available with GitHub Enterprise Cloud or GitHub Enterprise Server. For information about how you can try GitHub Enterprise with GitHub Advanced Security for free, see "Setting up a trial of GitHub Enterprise Cloud" and "Setting up a trial of GitHub Advanced Security" in the GitHub Enterprise Cloud documentation.
Note: If you change the visibility of a public repository to private then GitHub Advanced Security will be disabled for that repository.
For information about billing for GitHub Advanced Security, see the GitHub Enterprise Cloud documentation.