00 - Detection Engineering as a Discipline: Scripts to Pipelines

Introduction to modern detection engineering: evolution from isolated scripts to CI/CD pipelines for security rules.

What you'll learn

• Quality beats quantity - 50 high-fidelity detections are infinitely more useful than 5,000 rules generating alert noise.
• Treat detections as code - Versioning, code review, automated testing, and CI/CD pipelines are not optional, they are fundamental.
• Measure everything - MTTD, MTTR, precision, recall, ATT&CK coverage. Without metrics, continuous improvement is impossible.
• Start from the technique - Map detections to MITRE ATT&CK and focus resources on the techniques most relevant to your organization.
• Invest in data quality - A perfect detection is useless without the data to operate on. Normalization and log source onboarding are the invisible foundation of the entire program.

This article is part of the Detection Engineering series on federicocalo.dev.

Read the full article

The complete article (24 min read) with code examples, diagrams, and practical exercises is available here:

➡️ 00 - Detection Engineering as a Discipline: Scripts to Pipelines

https://federicocalo.dev/en/blog/detection-engineering-discipline-scripts-pipelines

By Federico Calò — Software Developer & Technical Writer