Best Practice Guide to Securing Software Supply Chains

This white paper provides a best practice guide focused on securing software supply chains, particularly emphasizing the role of Software Bill of Materials (SBOMs). It outlines the evolution of software development from original code to assembled software that incorporates open-source libraries, which can introduce security vulnerabilities. The document details the importance of software supply chain security, explaining that it involves ensuring the security of all components used in software products. It discusses the necessity of SBOMs, which serve as ingredient labels for software, listing all components and their relationships. The paper highlights the growing industry standardization of SBOMs, driven by regulatory requirements and the need for transparency in software supply chains. Furthermore, it addresses the limitations of SBOMs, noting that they do not provide contextual information about vulnerabilities and dependencies. The guide concludes with insights on how to effectively utilize SBOMs in conjunction with a comprehensive service catalog to enhance security measures and prioritize remediation efforts.