Open Source Security
JSR/Deno Package Ecosystem Supply Chain
JSR is the first mainstream package registry designed with supply chain security as a founding constraint. Here is what it gets right and what it has not solved yet.
Feb 28, 20267 min read
Resources
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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Zero trust architecture (ZTA)
A precise definition of zero trust architecture, the NIST 800-207 model, ZTNA vs VPN, and how zero trust principles apply to securing modern software supply chains.
Feb 28, 20267 min read
Application Security
IAST vs SAST in 2026: When to Use Which
A practical guide to when IAST adds value over SAST in 2026, with the workload characteristics that justify the operational cost of runtime instrumentation.
Feb 28, 20266 min read
Best Practices
Infisical: An Open-Source Secrets Platform Review
A senior engineer's assessment of Infisical as a self-hostable secrets platform, covering architecture, operational posture, and where it fits in 2024.
Feb 28, 20267 min read
Vulnerability Management
Symbolic Execution for Dependency Analysis
Symbolic execution explores program paths without concrete inputs. For supply-chain work, it answers reachability questions that fuzzing cannot.
Feb 28, 20267 min read
Industry Analysis
TOCTOU (Time-of-check to time-of-use)
TOCTOU flaws let attackers swap a file or resource after it's validated but before it's used, turning a safe check into an exploitable race.
Feb 28, 20267 min read
Best Practices
Rails Application Template Security
Rails application templates are powerful and dangerous: how they execute, what they can touch, and how to use them safely for new-project scaffolding.
Feb 28, 20268 min read
Open Source Security
Maven Central Changes in 2024 and Their Security Impact
Sonatype made several Maven Central changes in 2024 that materially affected the Java supply chain. A rundown of what changed, who was affected, and what Java teams should do.
Feb 28, 20266 min read
Cryptography
Hash collision attack
What is a hash collision, and why does it break integrity checks and signatures? A precise definition, the SHA-1 collision attack, and how Safeguard closes the gap.
Feb 28, 20266 min read
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