The Wayback Machine - https://web.archive.org/web/20200921143208/https://docs.github.com/en/github/finding-security-vulnerabilities-and-errors-in-your-code/automatically-scanning-your-code-for-vulnerabilities-and-errors

Automatically scanning your code for vulnerabilities and errors

You can find vulnerabilities and errors in your project's code on GitHub, as well as view, triage, understand, and resolve the related code scanning alerts.