Nessus

Lesson in the DevSecOps Roadmap · Stage 16: Incident Response

Last updated 14 September 2026

What is Nessus?

Nessus is a widely used vulnerability scanner that helps identify security weaknesses in computer systems, networks, and applications. It works by performing a variety of tests, including port scanning, service enumeration, and vulnerability identification, to detect potential security flaws. Nessus provides detailed reports on identified vulnerabilities, along with recommendations for remediation.

Study this in the interactive course See the whole DevSecOps roadmap

Free resources to learn Nessus

Official docsNessus
ArticleGet Started with Tenable Nessus
ArticleNessus vulnerability scanner: Beginner’s guide
ArticleVulnerability Scanning with Nessus: A Practical Guide
VideoNessus Vulnerability Scanner Tutorial (Cyber Security Tools)

Nessus: common questions

Can I learn Nessus in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Nessus in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Nessus tutorial for beginners?

It is lesson 57 of 93 in the free DevSecOps roadmap, in stage 16, Incident Response. If you are new to DevSecOps, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.