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Supply Chain Security, in plain English.

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.

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Tools

Kyverno vs OPA Gatekeeper: A Buyer Comparison for 2026

A practical comparison of Kyverno 1.13 and OPA Gatekeeper 3.18 for Kubernetes policy enforcement, covering language, performance, ecosystem, and operational fit.

Mar 4, 20266 min read

Tools

Kyverno ImageValidatingPolicy 2026: A Production Walkthrough

Kyverno 1.18 ships ImageValidatingPolicy as the new policy type for cosign signature, attestation, and SBOM verification. We migrated a 60-cluster fleet and graded the new model.

Feb 12, 20267 min read

Container Security

Kubernetes Admission Controller Policy Patterns in 2026

A field guide to the admission control patterns that survived contact with production clusters: validating webhooks, image policy, mutating defaults, and what to skip.

Feb 11, 20266 min read

Container Security

K8s Admission Controllers for Supply Chain Policy

How to design Kubernetes admission controllers that enforce supply chain policy without turning every deploy into a 30-minute argument with the cluster.

Jan 13, 20266 min read

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