Microsoft GH-500 - GitHub Advanced Security Certification Exam

This setting is configurable per repository and allows users to stay aware of critical issues while
minimizing notification noise.
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Using the Custom setting allows you to subscribe to specific event types, such as Dependabot alerts
or vulnerability notifications, without being overwhelmed by all repository activity. This is essential
for repository maintainers who need fine-grained control over what kinds of events trigger
noti ficati ons.

A security policy is defined by a SECURITY.md file in the root of your repository or .github/ directory.
This file informs contributors and security researchers about how to responsibly report
vulnerabilities. It improves your project’s transparency and ensures timely communication and
mitigation of any reported issues.A security policy is defined by a SECURITY.md file in the root of your repository or .github/ directory.
This file informs contributors and security researchers about how to responsibly report
vulnerabilities. It improves your project’s transparency and ensures timely communication and
mitigation of any reported issues.A security policy is defined by a SECURITY.md file in the root of your repository or .github/ directory.
This file informs contributors and security researchers about how to responsibly report
vulnerabilities. It improves your project’s transparency and ensures timely communication and
mitigation of any reported issues.

Dependabot builds a dependency graph by analyzing package manifests and lockfiles in your
repository. This graph includes both direct and transitive dependencies. It then compares this graph
against the GitHub Advisory Database, which includes curated, security-reviewed advisories.

This method provides a comprehensive and automated way to discover all known vulnerabilities
across your dependency tree.

Dependabot alerts are generated as soon as GitHub detects a known vulnerability in one of your
dependencies. GitHub does this by analyzing your repository’s dependency graph and matching it
against vulnerabilities listed in the GitHub Advisory Database. Once a match is found, the system
raises an alert automatically without waiting for a PR or manual action.
This allows organizations to proactively mitigate vulnerabilities as early as possible, based on realtime
detection.

When you identify that a code scanning alert is a false positive—such as when your code uses a
custom sanitization method not recognized by the analysis—you should dismiss the alert with the
reason "false positive." This action helps improve the accuracy of future analyses and maintains the
relevance of your security alerts. As per GitHub's documentation:

– [Configure and Use Code Scanning]

C. Open an issue in the CodeQL repository.

D. Dismiss the alert with the reason "false positive."

A. Draft a pull request to update the open-source query.

"If you dismiss a CodeQL alert as a false positive result, for example because the code uses a

sanitization library that isn't supported, consider contributing to the CodeQL repository and improving the analysis."