Container Security
In-depth guides and analysis on container security from the Safeguard engineering team.
283 articles
What is Container Monitoring
Container monitoring tracks metrics, logs, and runtime behavior across ephemeral containers—here's what it covers, why it matters, and how it differs from VM monitoring.
What is Docker Security
Docker security spans image scanning, SBOMs, and runtime controls — see the CVEs, misconfigurations, and real breaches that show why each layer matters.
Top 5 Docker Security Vulnerabilities
Runc escapes, exposed daemons, stale base images, privileged containers, and leaked secrets: the five Docker vulnerabilities behind most real container breaches.
Dockerfile Security Best Practices
Six question-driven answers on Dockerfile hardening: pinning, root users, multi-stage builds, secrets, and the review gates that catch supply chain risk early.
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.
What is Kubernetes Security
Kubernetes security spans four layers — cloud, cluster, container, code — and misconfiguration, not novel exploits, causes most real-world incidents.
Kubernetes Monitoring Guide
A practical Kubernetes monitoring guide: what to track across nodes, control plane, and workloads, the tools teams use, and where monitoring alone misses supply chain risk.
What is Kubernetes RBAC
Kubernetes RBAC controls who can do what in your cluster. Here's how Roles, Bindings, and ClusterRoles work — and where they commonly fail.
What Are Kubernetes Network Policies
Kubernetes clusters default to flat, all-to-all pod networking. Here's how NetworkPolicy objects, CNI enforcement, and default-deny rules actually stop lateral movement.
Container Runtime Comparison: A 2026 Buyer's Guide
A practical container runtime comparison for 2026 buyers: containerd, CRI-O, gVisor, Kata, and Youki measured against real production workloads.
What is Kubernetes Pod Security
Pod Security Standards replaced PodSecurityPolicy in Kubernetes 1.25. Here's what Kubernetes pod security means and how to enforce it in production.
What Are Kubernetes Admission Controllers
Kubernetes admission controllers intercept every API request before it hits etcd. Here's how validating and mutating webhooks work, what's enabled by default, and where they fail.