Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
You already use a non-root user and a slim base. These are the pro-level Docker hardening tips — read-only filesystems, dropped capabilities, and the docker.sock trap — that actually stop breakouts.
A Kubernetes Secret is base64, not encryption — and by default it sits in etcd in plaintext. Here is how to actually protect credentials with encryption at rest, external secret stores, and tight RBAC.
Every Docker layer you ship is attack surface you have to defend. Learn how to build lean, non-root, secret-free images that survive a registry scan and a real audit.
Helm charts template every RBAC binding, image reference, and secret your cluster runs. Here is how to harden charts, verify provenance, and stop a templating tool from quietly shipping cluster-admin.
The default Node.js Dockerfile runs as root, ships dev dependencies, and bakes secrets into layers. Here is a secure, multi-stage build you can copy, step by step.
By default every pod in a Kubernetes cluster can talk to every other pod. NetworkPolicies are how you replace that flat network with least-privilege segmentation — here is how to design and roll them out without breaking traffic.
A default Kubernetes cluster trusts too much: root pods, flat networking, and readable secrets. Here are the hardening practices that actually move the needle in 2026.
Ten concrete Docker image security practices — minimal base images, secret handling, reachability-based scanning, non-root runtimes, and SBOMs — with real CVEs and data.
Runc escapes, exposed Docker APIs, malicious registry images: the Docker vulnerabilities actually driving incidents in 2024-2025, and how to triage what's exploitable.
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