When the Automatic PR Checks feature is enabled, Snyk Code automatically scans your source code PRs once they are created, in search of security vulnerabilities. Every additional commit that will be made to the open PRs, will be scanned automatically as well. When the scan is completed, Snyk Code displays its findings in the SCM – either passed or failed. If security vulnerabilities are found, Snyk Code automatically fails the scanned PRs, thus preventing new security issues from entering into your code: