Practical, layered defenses against package supply chain attacks. Written after the March–April 2026 wave of supply chain compromises: Trivy and LiteLLM (TeamPCP), and axios (Sapphire Sleet / UNC1069).
Three major supply chain attacks hit within two weeks, exposing how fragile implicit trust in open-source tooling can be.
Trivy (TeamPCP, March 19–22): Aqua Security's Trivy vulnerability scanner — the most widely used open-source scanner in cloud-native CI/CD — was compromised in a multi-phase attack. An earlier breach in February via a misconfigured pull_request_target workflow stole a Personal Access Token. Credential
