Concepts
What Is a Package URL (purl)?
A Package URL, or purl, is a standardized string that identifies a software package across any ecosystem. Here's how its structure works and why SBOMs and vulnerability feeds depend on it.
Jul 7, 20266 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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What Is Privilege Escalation? A 2026 Explainer
Privilege escalation is how a limited foothold becomes full control. This explainer covers vertical vs. horizontal paths across Linux, containers, and cloud IAM.
Jul 7, 20265 min read
Concepts
What Is Reachability Analysis in Security?
Reachability analysis determines whether a vulnerable piece of code can actually be executed from your application — cutting through the noise of vulnerabilities that exist but can never be triggered. Here's how it slashes false positives.
Jul 7, 20267 min read
Buyer's Guides
Wiz vs Prisma Cloud: A Neutral CNAPP Comparison for 2026
Wiz and Prisma Cloud are leading cloud-native application protection platforms with different DNA — agentless graph versus a broad code-to-cloud suite. An honest side-by-side, plus where a third option fits.
Jul 7, 20266 min read
Security Guides
Auditing Yarn Dependencies: A Guide to yarn audit and yarn npm audit
Yarn Classic and Yarn Berry audit dependencies differently. Learn the right commands for each, how to enforce overrides via resolutions, and where to go further.
Jul 7, 20265 min read
Application Security
A practical guide to bug bounty hunting
HackerOne alone has paid hackers over $300M since 2012, but most new researchers earn nothing — duplicates, not skill gaps, are the top reason first reports fail.
Jul 7, 20267 min read
Application Security
An introduction to C and C++ memory-safety vulnerabilities
Microsoft has reported that roughly 70% of the CVEs it patches each year trace back to memory-safety bugs — here's what buffer overflows, use-after-free, and double-free actually look like.
Jul 7, 20268 min read
Supply Chain Attacks
Anatomy of an npm Dependency Confusion Attack
One researcher published fake packages matching internal names at over 35 companies in 2021 and collected six-figure bounties — here's exactly how the registry resolution flaw works.
Jul 7, 20266 min read
Application Security
Apache Struts and the recurring pattern of path-traversal and RCE bugs
Equifax lost data on 147 million people to one unpatched Struts CVE in 2017 — and the same class of bug resurfaced in Struts as recently as December 2023.
Jul 7, 20266 min read
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