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.
Minimal base images cut CVE counts by up to 95% by shipping only what your app needs. Here is how to choose between distroless, Wolfi, Alpine, and scratch — and build on each safely.
A container image tag proves nothing about who built the image or whether it was tampered with. Cosign and Sigstore fix that with cryptographic signatures and a public transparency log — here is how to sign, verify, and enforce.
A secret written into a Docker layer is recoverable forever, even after you delete it. Learn the build-time and runtime patterns that keep credentials out of your images entirely.
Docker grants every container 14 Linux capabilities by default. Here's why NET_RAW, SYS_CHROOT, and friends turn contained compromises into breakouts—and how to drop them safely.
Docker's --privileged flag strips seccomp, AppArmor, and capability limits in one line. Here's how attackers exploit it, real CVEs, and how to lock it down.
Alpine is tiny and familiar; distroless is tinier and shell-free. The right choice depends on what you value more — debuggability or a minimal attack surface. Here is the honest tradeoff.
A container is a process with boundaries, not a virtual machine. When those boundaries fail, an attacker lands on the host. Here is the anatomy of real container escapes — runc, Leaky Vessels, Dirty Pipe — and how to defend against them.
Alpine is tiny and dodged the xz backdoor; Debian has deeper security tracking and broader compatibility. Here is how the two base images actually compare on security — and how to harden either one.
The API server is the front door to your cluster — every kubectl command, controller, and kubelet talks to it. If it is misconfigured, nothing else you harden matters. Here is how to lock it down.
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