GitHub has many features that help you improve and maintain the quality of your code. Some of these are included in all plans, for example: dependency graph and Dependabot alerts. Other security features require a license for GitHub Advanced Security to run on repositories apart from public repositories on GitHub.com. (That is, private and internal repositories on GitHub.com, and all repositories on GitHub Enterprise Server.)
For an overview of all security features, see "About securing your repository." For information about permission requirements for actions related to security features, see "Repository permission levels for an organization."
A GitHub Advanced Security license provides the following additional features:
Code scanning - Search for potential security vulnerabilities and coding errors in your code. For more information, see "About code scanning."
Secret scanning - Detect secrets, for example keys and tokens, that have been checked into the repository. For more information, see "About secret scanning."
Dependency review - Show the full impact of changes to dependencies and see details of any vulnerable versions before you merge a pull request. For more information, see "Reviewing dependency changes in a pull request."
For information about Advanced Security features that are in development, see "GitHub public roadmap."
For public repositories on GitHub.com, these features are permanently on and are only disabled if you change the visibility of the project so that the code is no longer public.
For all other repositories, once you have a license, you can enable and disable these features at the organization or repository level. For more information, see "Managing security and analysis settings for your organization" and "Managing security and analysis settings for your repository."
For information about purchasing a license for GitHub Advanced Security, contact GitHub's Sales team.