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.
Log4Shell hid in countless container images for years before scanning caught it. Here's how to scan base layers and gate builds before that happens again.
A stock node:18 image ships at roughly 940MB with 100-200 tracked CVEs; distroless variants land 80% smaller with 0-2. Here's the real tradeoff.
Sysdig found 76% of containers still run as root — one of four Docker image flaws that turn a routine build into a host compromise.
A misplaced master.key or a permissive COPY . . can bake Rails credentials into an image layer forever — here's how to Dockerize Rails dev safely.
ko builds Go containers straight from source onto a shell-less distroless base with no Dockerfile — cutting attack surface, and debugging tools, at once.
Two runc CVEs, five years apart, both turned root-in-container into root-on-host — proof that container isolation needs backup, not blind trust.
A single runc bug (CVE-2024-21626) enabled full container escapes in early 2024 — proof that provenance and network defaults matter as much as image scanning.
PHP containers ship with defaults built for compatibility, not security. Opcache settings, disabled functions, and process ownership close the gaps.
Standard Docker Hub images ship 50-60 known CVEs on average. Here's the checklist that gets containers from base image to runtime without carrying them along.
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