The Wayback Machine - https://web.archive.org/web/20230916172532/https://docs.github.com/en/code-security/code-scanning/enabling-code-scanning

Enabling code scanning

You can quickly and easily secure your code with default setup for code scanning.

Code scanning is available for all public repositories on GitHub.com. Code scanning is also available for private repositories owned by organizations that use GitHub Enterprise Cloud and have a license for GitHub Advanced Security. For more information, see "About GitHub Advanced Security."

Configuring default setup for code scanning
You can quickly secure code in your repository with default setup for code scanning.
Configuring default setup for code scanning at scale
You can quickly configure code scanning for repositories across your organization using default setup.