AWS Publishes Well-Architected Best Practices for Software Supply Chain Security

In response to the growing threat of software supply chain attacks, AWS has published a detailed guide on well-architected best practices for enhancing security. The blog post, updated on May 26, 2026, highlights the importance of a multi-layered defense strategy to protect against vulnerabilities that can arise from compromised package registries, CI/CD pipelines, and developer credentials. Recent incidents like the Shai-Hulud and Chalk/Debug attacks underscore the need for robust security measures. The recommended practices include several key components. Firstly, the use of temporary credentials is crucial to limit the window of exposure if tokens are stolen. AWS IAM Identity Center and OpenID Connect (OIDC) federation for CI/CD platforms like GitHub Actions and GitLab CI are highlighted as effective ways to acquire short-lived credentials. Secondly, centralized dependency management and upstream blocking help reduce the attack surface at the registry level. Thirdly, artifact signing ensures that only verified and trusted artifacts can reach production, even if a build pipeline is compromised. Continuous dependency scanning throughout the software development lifecycle is also emphasized. AWS services such as Kiro for code reviews, Amazon Inspector for scanning first-party code, third-party dependencies, and Infrastructure as Code, and continuous vulnerability scanning for Amazon ECR images are recommended. These tools help identify compromised packages early, before they can impact customer environments. By adopting these well-architected principles, organizations can significantly strengthen their software supply chain security and reduce the risk of widespread attacks.