container-security
Safeguard articles tagged "container-security" — guides, analysis, and best practices for software supply chain and application security.
100 articles
Best container registry vulnerability scanning tools
A practical look at container registry scanning tools — evaluation criteria, six real vendors compared fairly, and how Safeguard closes the supply-chain gaps scanning alone leaves open.
Docker Isolation: How Containers Actually Separate Workloads
Docker isolation relies on Linux namespaces, cgroups, and capabilities, not a hypervisor. Here is what that really protects and where the boundary is weaker than teams assume.
Writing a Container Security Policy That Actually Holds
Most container security policies get written once, ignored during the next sprint, and rediscovered during an audit — here's how to write one that engineers actually follow.
Multi-Stage Docker Builds: A Security Pattern, Not Just a Size Trick
Multi-stage builds are pitched as a way to shrink images. Their bigger payoff is security: build secrets, compilers, and toolchains that never reach production. Here is how to use them right.
Aqua Security vs Prisma Cloud: A Neutral Comparison for 2026
Aqua Security and Prisma Cloud both secure cloud-native workloads, but one grew from container and runtime defense and the other from a broad platform. An honest side-by-side, plus where a third option fits.
Docker Layer Caching Security Risks (and How to Avoid Them)
Layer caching makes builds fast — and quietly bakes secrets into layers, hides unpatched base images, and poisons shared CI caches. Here is how to keep caching without the exposure.
Container Runtime Security Monitoring: Catching the Breach in Progress
Scanning tells you what could go wrong before deploy. Runtime monitoring tells you what is going wrong right now. Here is how to detect container attacks as they happen.
Hardening Amazon EKS With Native AWS Controls
AWS secures the EKS control plane and etcd — everything else, from IAM to security groups to node OS patching, is on you under the shared responsibility model.
Securing Containerized AI Workloads: Base Images, GPU Drivers, and Runtime Policy
A CVSS 9.0 flaw in NVIDIA's Container Toolkit let any GPU container escape to the host — and its first patch didn't fully close it. Here's how to defend AI infrastructure.
Protect the Environment: How Env-Var Leakage Happens in CI/CD
One tampered Bash script exposed roughly 23,000 Codecov customers' credentials for two months. Environment-variable leakage is a recurring CI/CD failure mode, not a one-off.
CTF Writeup: Container SETUID Escape Techniques
A container-local root shell is not the flag. CVE-2019-5736 and CVE-2021-4034 both show how a SETUID binary inside a container can become a host compromise.
Docker best practices for Node.js developers in 2026
Multi-stage builds can cut a Node.js image from 1GB+ down to under 150MB — but most teams still ship dev dependencies, root shells, and unscanned base layers to production.
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