Secure Software Supply Chains

Every release you ship is built from packages chosen by strangers, tools run by pipelines and credentials held by automation. This guide shows engineers, platform teams and security staff how to make that trust deliberate. You will generate and use software bills of materials, choose and pin dependencies, triage vulnerabilities with context, lock down build pipelines and runners, make builds isolated and more repeatable, and sign artifacts with provenance that is verified before deployment. A staged 90-day rollout and a rehearsed incident playbook for a compromised package keep the work practical for small teams. Checklists, a control-priority table and a short glossary make it easy to start with one service and spread the habits across the rest. Examples are fictional, commands are short, and the advice is strictly defensive.