Tracking changes in code dependencies, particularly security vulnerabilities, has become increasingly complex as developers often use existing code libraries. GitHub's security alerts system actively notifies project maintainers when vulnerabilities in libraries like RubyGems for Ruby and npm for JavaScript are detected, offering patched versions to resolve issues. These alerts rely on standardized lists of vulnerabilities, such as the Common Vulnerabilities and Exposures (CVEs), and since their launch, have helped resolve over 450,000 vulnerabilities in public repositories by encouraging maintainers to update or remove risky dependencies. Within a week of detection, around 30% of vulnerabilities are resolved, and 15% of alerts are dismissed, with most unresolved cases belonging to inactive repositories. GitHub has introduced regular vulnerability digest emails to further support maintainers and security teams in addressing these issues promptly. The initiative marks the beginning of enhanced code safety measures, with future plans to integrate more data for improved code checking and generation.