Concepts
In-depth guides and analysis on concepts from the Safeguard engineering team.
116 articles
CVE vs CWE: What's the Difference?
A CVE identifies one specific vulnerability in one product; a CWE names the underlying type of weakness that caused it. Here's how the two systems differ and how they work together.
DevSecOps Fundamentals
DevSecOps folds security into the fast, automated flow of modern development instead of bolting it on at the end. This guide explains what DevSecOps really means, how the pipeline works stage by stage, and the practices that make it stick.
How to Choose an Open Source License
Choosing a license for your project comes down to how much control you want over downstream use. This guide walks through the decision — permissive, weak copyleft, or strong copyleft.
SAST vs SCA: What's the Difference? (Beginner's Guide)
SAST reads the code your team wrote, looking for insecure patterns. SCA inspects the open-source code you borrowed, looking for known vulnerabilities. One checks your writing; the other checks your ingredients.
What Is Vulnerability Management? A Complete Explanation
Vulnerability management is the continuous, cyclical process of identifying, prioritizing, remediating, and verifying security weaknesses across your software and systems. Here's the full lifecycle and how to run it without drowning in findings.
Agent-Based vs Agentless Scanning: What's the Difference?
Agent-based scanning installs software on each system to watch it from the inside. Agentless scanning inspects from the outside with no installation. One sees deeper; the other deploys faster.
Container Security Fundamentals
Containers made shipping software faster, but every image is a stack of inherited software with its own attack surface. This guide covers the fundamentals: what a container really is, where the risks live, and the practices that keep images and runtimes safe.
Open Source License Comparison: MIT, Apache, BSD, GPL, and More
A side-by-side comparison of the major open-source licenses — MIT, BSD, Apache 2.0, MPL, LGPL, GPL, and AGPL — across permissions, conditions, copyleft strength, and patent handling.
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.
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.
Data Flow Diagrams for Threat Modeling
A data flow diagram maps how data moves through a system and where trust changes — the foundation most threat modeling is built on. Here's how to draw one that actually surfaces threats.
Red Team vs Blue Team: What's the Difference?
The red team plays the attacker, probing for ways in. The blue team plays the defender, detecting and stopping them. One breaks; the other protects.