Engineering
Monitoring Package Maintainer Changes as a Threat Signal
Most package hijacks start with a maintainer change nobody was watching. Registry metadata makes these events observable — if you bother to look.
May 10, 20266 min read
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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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Vendoring Dependencies: When It Helps and When It Hurts Security
Committing dependencies to your repo buys immutability and availability — and quietly breaks scanners, updates, and license tracking. Here's the honest ledger.
Apr 30, 20267 min read
Engineering
Go Module Security: sumdb, GOPROXY and Private Modules
How Go's checksum database actually protects you, where GOPROXY ordering bites, and the GOPRIVATE mistakes that leak internal module paths to public infrastructure.
Mar 30, 20267 min read
Engineering
Container Image Digests vs Tags: Why Pinning Matters
A tag is a mutable pointer; a digest is the image. Pinning by digest is the difference between deploying what you tested and deploying whatever the registry says today.
Mar 27, 20266 min read
Engineering
Ruby Gems Security: Signing, Yanking and Trusted Publishing
Gem signing never took off, yanking is weaker than people assume, and trusted publishing finally fixes the credential problem. What to actually rely on in a Ruby pipeline.
Mar 20, 20266 min read
Engineering
Python Wheels vs Source Distributions: Security Implications
Installing an sdist runs someone else's code on your machine; installing a wheel doesn't. That one difference drives most PyPI malware — and most of the right defenses.
Mar 16, 20266 min read
Engineering
CycloneDX and SPDX: Why Safeguard Supports Both and How We Normalize Between Them
The SBOM format debate misses the point. Safeguard ingests both CycloneDX and SPDX, normalizes to a common model, and lets you query and export in either format.
Mar 12, 20267 min read
Engineering
Rust Crate Security: cargo audit, cargo vet and Beyond
cargo audit catches known-bad versions, cargo vet forces someone to actually read the code. What each tool covers, what neither covers, and how to run both without hating your CI.
Mar 11, 20266 min read
Engineering
Software Escrow and Supply Chain Continuity Planning
Most escrow deposits are write-only: nobody ever verifies they build. What escrow actually covers, when to pay for verification, and what continuity means for SaaS and OSS.
Mar 10, 20267 min read
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