This document is a guide that outlines the nature of supply chain attacks and provides strategies for enterprises to prevent and mitigate these threats. It discusses the various types of supply chain attacks, including software, hardware, personnel, and financial attacks, detailing how each type can compromise enterprise systems. The guide emphasizes the importance of a holistic approach to supply chain security, which includes conducting risk assessments, developing secure software development processes, and implementing supply chain visibility measures. It highlights the necessity of using tools like software bills of materials (SBOMs) to track software components and ensure compliance with industry standards. The document also stresses the need for automated dependency updates to maintain security and reduce vulnerabilities. By understanding the stages of supply chain attacks and recognizing both common and hidden vulnerabilities, enterprises can better prepare and protect their supply chains from potential threats.