A recent executive order mandates that defense contractors conduct a thorough mapping of their software and suppliers across critical supply chains, aiming to achieve end-to-end visibility. This directive focuses on uncovering potential vulnerabilities, including software dependencies, foreign ownership, and cyber-related risks associated with suppliers. The order underscores the importance of identifying and mitigating these risks to ensure the security and integrity of the defense supply chain. By requiring contractors to scrutinize their supply chains, the government seeks to prevent potential cyber threats and protect sensitive information1. This move is likely to have significant implications for defense contractors, who will need to invest in resources and expertise to comply with the new requirements. Ultimately, this executive order matters to practitioners because it highlights the critical need for robust supply chain risk management in the defense sector, where the consequences of a security breach could be catastrophic.