Sonatype Repository Firewall automatically scans and evaluates software components against customized governance policies to protect software supply chains. It uses AI behavioral analysis and automated policy enforcement to detect and block malicious components, including malware, vulnerabilities, and supply chain attacks, before they enter the repository. The solution quarantines suspicious components for validation and allows safe ones to proceed, ensuring uninterrupted developer workflows while defending against various attack types such as typosquatting and dependency confusion, providing a scalable and integrable security layer for organizations.