image-security
Safeguard articles tagged "image-security" — guides, analysis, and best practices for software supply chain and application security.
15 articles
Docker Meaning: What Docker Is and Why It Matters for Security
Docker packages an application and everything it needs into a portable container that runs the same everywhere. Understanding that model is the first step to securing it.
Docker Ubuntu Image: How to Use It Securely and Keep It Slim
The Docker Ubuntu image is a fine base, but a naive Dockerfile ships a bloated, vulnerable container. Here is how to pin, slim, and scan it properly.
Rolling Out Zero-CVE Base Images Org-Wide
A pragmatic playbook for migrating an entire engineering organisation onto zero-CVE base images, covering pilot selection, registry mirroring, drift control, and the hard people-side of the rollout.
Container Supply Chain Defence: Build To Run
An end-to-end view of container supply chain controls from source through registry to runtime, covering signing, attestation, admission policy, and runtime drift, with concrete checkpoints at each stage.
Kubernetes Admission Policy Real-World Deployment
What it actually takes to put Kubernetes admission policy into enforcement mode without breaking deployments: phased rollout, exception workflows, audit-mode hygiene, and policy authoring conventions that survive contact with engineers.
Pod Supply Chain Attestation Validation
How to validate supply chain attestations at pod admission time without grinding deployments to a halt: which attestation types actually matter, how to chain verifications, and how to fail useful.
What Is Docker Used For? A Practical Answer
What Docker is actually used for in real teams: packaging apps, consistent environments, and shipping to production, plus the security angles that come with containers.
OCI Artifact Signing Rollout Program
A program plan for getting OCI artifact signing across an organisation: trust roots, key custody, build integrations, registry policy, and the inevitable cleanup of unsigned legacy content.
Runtime Container Drift: Supply Chain Implications
Runtime drift is the last honest witness in container supply chain defence. This post covers what drift signals tell you, how to instrument for them, and how to investigate without overwhelming on-call.
Chiseled / Distroless Image Rollout Program
What it takes to standardise on chiseled and distroless container images across an engineering organisation: which workloads benefit, which do not, and how to handle the operational quirks of imageless containers.
Service Mesh Supply Chain Policy 2026
Service meshes are a control plane and a data plane and a supply chain risk surface all at once. This post covers the policy controls that matter in 2026 for sidecars, control planes, and mesh-issued certificates.
Kubernetes Operator Supply Chain Controls
Operators are powerful, privileged, and often under-governed. This post covers the supply chain controls that keep operator installations from becoming the largest attack surface in your cluster.
Self-healing security runs on Safeguard.
Your first fix PR is minutes away.
No sales call required, even your agent can complete the purchase over MCP.