Software supply chain security is a growing concern due to open source vulnerabilities in applications.Canonical has introduced the Container Build Service to address these challenges.Organizations are adopting OSS to reduce costs, accelerate development, and increase reliability.84% of codebases contain at least one known open source vulnerability, with 50% categorized as high-severity.Supply chain attacks are on the rise, leading to an increased focus on container image integrity.Canonical's Container Build Service offers reproducible, security-maintained container images with up to 12 years of support.The service guarantees security updates for the entire container, covering all dependencies, not just OS components.Canonical's chiseled Ubuntu container images reduce image size and attack surface, enhancing performance and security.Chiseled images include only essential components, leading to faster start-up times and lower memory usage.The Container Build Service builds on Ubuntu Pro's long-term support policies, providing comprehensive security maintenance for containers.