Choosing secure base images for containers
Base image choice drives most of your container's attack surface. Here's what secure Docker base images actually require, with concrete CVE data.
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.
Base image choice drives most of your container's attack surface. Here's what secure Docker base images actually require, with concrete CVE data.
Distroless images cut container size by up to 90% and eliminate OS-level CVEs, but they don't secure app dependencies. Here's how they work and where they fall short.
Alpine and distroless both shrink attack surface differently. We compare real CVEs, musl risks, and patch tradeoffs to settle which base image actually wins.
Where to put container image scanning in your CI/CD pipeline, what it actually catches, and how to stop CVE floods from blocking every build.
Namespaces, cgroups, and seccomp each isolate a different layer of a container — and a single misconfigured one, like CVE-2024-21626 showed, breaks all three.
A breakdown of Kubernetes' Privileged, Baseline, and Restricted Pod Security Standards, how they replaced PodSecurityPolicy, and where enforcement typically fails.
A field-by-field guide to Kubernetes securityContext: which settings stop container breakouts, how to enforce them cluster-wide, and how to audit gaps.
RBAC drift and over-broad bindings are the top cause of Kubernetes lateral movement. Six concrete, question-first practices to lock down access before it's exploited.
Kubernetes network policies default to allow-all. Here is how default-deny rules, CNI enforcement, and policy testing build real zero-trust segmentation.
Weekly insights on software supply chain security, delivered to your inbox.
Your first fix PR is minutes away.
No sales call required, even your agent can complete the purchase over MCP.