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.
The official php:fpm image still runs its master process as root — a documented, still-open issue. Here's how to build a PHP Dockerfile that doesn't.
jlink has shipped with every JDK since Java 9 in 2017, yet most Spring Boot images still ship a full 300MB+ JDK. Here's how to fix that.
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.
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.
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.
Docker retires Content Trust on December 8, 2026, while fewer than 0.05% of Hub pulls ever used it — here's how Sigstore and Notary v2 actually replaced it.
A fail-the-build scanning pipeline is a few YAML lines away — but pin the Action wrong and you inherit its supply chain risk too.
The path from a git commit to a running pod crosses a dozen systems, each a place to inject malicious code. Here is how to build a chain of custody Kubernetes will actually verify.
Admission controllers are the policy chokepoint between a validated API request and a running workload. Used well, they enforce your entire security posture. Here is how validating webhooks, Kyverno, OPA, and the new CEL-based policies fit together.
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