Container Security
In-depth guides and analysis on container security from the Safeguard engineering team.
284 articles
What is Helm Chart Security
Helm chart security means finding and fixing the RBAC, secrets, and supply chain risks baked into Kubernetes' most-used packaging format.
How to Choose a Secure Base Image
Base image choice sets your CVE floor before any scanner runs. Here's how to evaluate footprint, patch cadence, provenance, and rebuild cycle.
Kata Containers Security Model Review
Kata wraps each pod in a lightweight VM. That is a real security boundary. It is also one that comes with real costs and real caveats.
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.
GCP Binary Authorization Policy Patterns
Policy design patterns for GCP Binary Authorization that hold up in production: attestor topology, exception handling, continuous validation, and the shapes that stop a deploy-time compromise without blocking legitimate rollouts.
Kubernetes 1.30 and 1.31 Security Rundown
ValidatingAdmissionPolicy GA, VolumeSource for OCI artifacts, and anonymous API cleanup: what 1.30 and 1.31 change for cluster security posture.
Kubernetes Service Mesh Policy Depth
Service meshes promise layered policy. The promise is real, but the layers only help if you use them, and most deployments use one.
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.
CRI-O vs containerd: Security Comparison
Both are CNCF graduated runtimes. Both run production clusters. Their security properties diverge in ways that matter for hardened environments.
Rancher Cluster Security Hardening
Rancher is the distribution that runs when your Kubernetes is neither EKS nor OpenShift. Hardening it well is specific work.
Azure Container Registry Trust Model
What Azure Container Registry actually guarantees about the images you pull — signing, attestation, content trust, and where the trust chain breaks in practice.
AWS ECR Image Signing in Production
Image signing in ECR has moved from nice-to-have to table stakes. Here is what it actually takes to run cosign and AWS Signer in production without breaking every deploy.
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