Containers share a kernel, so a container is not a security boundary by default. This is the practical hardening that makes one act like a boundary — minimal pinned images, a signed and scanned supply chain, dropped capabilities and seccomp, and a Kubernetes securityContext that actually holds.
Trivy
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Container Security in 2026: The Threat Model, the Supply Chain, and a Pod That Can't Hurt You -
Trivy: Container and IaC Vulnerability Scanning A complete guide to Trivy — scanning container images, filesystems, Terraform, Kubernetes clusters, and generating SBOMs with a single tool.
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Container Image Hardening: Distroless, Multi-Stage Builds, and Vulnerability Scanning A practical, in-depth guide to reducing your container attack surface through distroless base images, multi-stage builds, Trivy vulnerability scanning, and CI/CD integration — covering everything from Dockerfile patterns to Kubernetes securityContext settings.