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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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Articles

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Engineering

A Beginner's Guide to Threat Modeling Your Build Pipeline

Your CI system is a production system with worse access controls. A first threat model of the pipeline takes one whiteboard session and usually finds something ugly.

Mar 7, 20267 min read
Engineering

Alpine vs Distroless vs Ubuntu Base Images: Security Tradeoffs

Alpine is small, distroless is smaller, Ubuntu is comfortable. The real security question is CVE surface vs debuggability vs compatibility — with numbers.

Mar 2, 20267 min read
Engineering

SLSA Level 3 in Practice: What It Takes

SLSA Build L3 is achievable in a week per repo if you use a hosted builder — and nearly impossible if you insist on rolling your own. Here is the practical path.

Feb 23, 20266 min read
Engineering

PHP Composer Security: Lockfiles, Packagist and Abandoned Packages

composer.lock is your integrity anchor, Packagist is a single point of trust, and roughly one in ten packages you depend on is quietly unmaintained. A field guide.

Feb 23, 20266 min read
Engineering

Security Debt: Measuring and Paying It Down

Security debt is the gap between the risk you're carrying and the risk you've decided to carry. Here's how to measure it in vuln-days and pay it down without a heroic quarter.

Feb 16, 20267 min read
Engineering

npm Provenance Statements: What They Prove and What They Don't

npm provenance ties a package to the commit and CI run that built it. That's genuinely useful — and narrower than most teams assume. Here's the exact boundary.

Feb 11, 20266 min read
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