This cheat sheet outlines practical steps to secure the software supply chain, covering everything from code repositories to CI/CD pipelines, dependencies, and deployment artifacts. It emphasizes a zero-trust approach where every component must be signed, verified, and scanned, addressing risks from third-party dependencies and compromised pipelines. Key practices include artifact signing, SBOM generation, CI/CD hardening, least-privilege access, secure artifact repositories, and continuous monitoring for anomalies. The guide also highlights real-world risks like dependency attacks and CI compromises. The main takeaway is that end-to-end verification and automation are essential to building resilient, tamper-proof software delivery pipelines.

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