Modern software products are assembled from a mix of external code, services, and open-source packages rather than built from scratch. This shift has created a complex software supply chain that every organization participates in, whether they recognize it or not. The article emphasizes that this supply chain is not just about technical dependencies but also about the influence and trust surrounding third-party software. High-profile security incidents, such as maintainer-account takeovers and malicious dependency updates, highlight that the biggest risks now stem from the trust model associated with these external components. The article outlines a typical failure scenario involving credential theft and malicious code injection, which can lead to significant compromises across products and customer data. Historically, engineering teams have implicitly trusted third-party dependencies, but this trust is increasingly misplaced. With attacks becoming more sophisticated, the need for verification mechanisms like cryptographic proof of origin and signed attestations has become critical. Trust needs to be explicit, enforceable, and verifiable throughout the development lifecycle to ensure product integrity before reaching customers. Decentralization of decision-making within teams has its advantages, particularly in achieving product-market fit, but it weakens centralized oversight and increases systemic risk. Teams now have more freedom to select dependencies and release code, but this freedom can lead to vulnerabilities when proper governance isn't in place. The article stresses that supply-chain failures can ripple through an organization, causing more than just technical issues—they can damage reputations and erode customer trust. Current security measures, such as vulnerability scanning and dependency audits, improve visibility but do not address the core problem of trust. Teams often use third-party packages without knowing how they were built, leading to potential security gaps. A malicious update can easily bypass existing security checks if those checks focus solely on code structure rather than origin and context. The article argues for a shift in focus toward ensuring the authenticity and integrity of software dependencies to protect against these evolving threats.