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Best system security Courses Online

We compared 20 System Security courses currently listed on Coursera and Udemy, priced from $19.99 to $199.99. 4 come from a named university or institution, including University of Colorado System, Birla Institute of Technology & Science, Pilani and Illinois Tech. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.

Courses in our catalog
53
Compared here
20
  1. 1
    Coursera MOOC / Non-credit Grade A University-backed

    Advanced System Security Design

    Offered by University of Colorado System

    This specialization is intended for intermediate level learners with basic programming skills and basic cybersecurity knowledge. Through this course learner will learn about advanced secure software techniques such as th...

    $49.00
    listed price
  2. 2
    Coursera MOOC / Non-credit Grade A University-backed

    Information Security

    Offered by Birla Institute of Technology & Science, Pilani

    The course "Information Security" aims to prepare you for a deeper understanding and application of information security principles and practices essential for today’s digital landscape. In this course, you’ll be introdu...

    $49.00
    listed price
  3. 3
    Coursera Certificate Grade B

    Foundations of IT Systems and Operating Systems

    Offered by Packt

    This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the co...

    $49.00
    listed price
  4. 4
    Coursera Certificate Grade B University-backed

    Hardware and Operating System Foundations

    Offered by Illinois Tech

    This specialization consists of three courses and one capstone. The specialization provides a comprehensive introduction to the features, management, and security of both Windows and Linux operating systems. You will mas...

    $49.00
    listed price
  5. 5
    Coursera MOOC / Non-credit Grade B

    TOTAL: CompTIA A+ Core 2 (220-1202) v15

    Offered by Packt

    This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the co...

    $49.00
    listed price
  6. 6
    Coursera MOOC / Non-credit Grade B

    Ethical Hacking

    Offered by LearnKartS

    Practice ethical hacking concepts using real-world tools, guided labs, and simulated attack scenarios designed for beginners. This Ethical Hacking Specialization is suitable for those who want to become ethical hackers....

    $49.00
    listed price
  7. 7
    Udemy Certificate Grade B

    CompTIA Security+ :Viruses,Threats and Compromise Indicators

    In this course, you will delve into the world of viruses & worms — two of the most common and destructive types of malware. You’ll gain a deep understanding of what they are, how they differ from each other, and the...

    $139.99
    listed price
  8. 8
    Udemy Certificate Grade B Lowest price here

    Test prep 2026: Claude Certified Architect Foundations

    Are you ready to become a certified expert in building systems with Claude? I made this practice test course to help you pass the Claude Certified Architect Foundations exam on your first try. I know how hard it can be t...

    $19.99
    listed price
  9. 9
    Udemy Certificate Grade B

    ISSEP Information Systems Security Engineering Prof QA Test

    ISSEP Information Systems Security Engineering Professional Exam Practice Test The Information Systems Security Engineering Professional (ISSEP) is a security leader who specializes in the practical application of system...

    $24.99
    listed price
  10. 10
    Udemy Certificate Grade B

    Simulado LPIC-1 Administrador de Sistemas Linux

    Simulado LPIC-1 Administrador de Sistemas Linux. A certificação de nível um do Linux Professional Institute é o padrão ouro para profissionais que buscam validar suas competências técnicas na administração básica de serv...

    $34.99
    listed price
  11. 11
    Udemy Certificate Grade B

    Linux Administration: Benutzer und Gruppen

    Von der Website der Linux Foundation:#Linux Foundation Certified System Administrator (LFCS) ist ideal für Kandidaten, die am Anfang ihrer Linux-Systemadministration oder Open-Source-Karriere stehen. LFCS wurde von der L...

    $49.99
    listed price
  12. 12
    Udemy Certificate Grade B

    Learn Ethical Hacking & Penetration Testing

    Welcome to Learn Ethical Hacking & Penetration Testing!This course will teach you the techniques used by professional penetration testers and ethical hackers world wide. By the end of it, you will have the skills to...

    $199.99
    listed price
  13. 13
    Udemy Certificate Grade B

    Linux Antivirus Essentials

    Hey Linux champions, listen up! We get it – your digital realm deserves the best defense. That's why "Linux Antivirus Essentials" isn't just a course; it's your VIP pass to a fortified, impenetrable Linux kingdom. Here's...

    $19.99
    listed price
  14. 14
    Coursera MOOC / Non-credit Grade C University-backed

    Introduction to Cyber Security

    Offered by New York University

    Introduction to Cyber Security was designed to help learners develop a deeper understanding of modern information and system protection technology and methods. The learning outcome is simple: We hope learners will develo...

    $49.00
    listed price
  15. 15
    Udemy MOOC / Non-credit Grade C

    LINUX LPIC-2 (201-450) Mocks with Explanations (Unofficial)

                                                              || LINUX LPI...

    $19.99
    listed price
  16. 16
    Udemy Certificate Grade C

    AiU - Certified Tester in Artificial Intelligence (CTAI)

    AiU - Certified Tester in Artificial Intelligence (CTAI) Course Details and Comprehensive Preparation. Welcome to the ultimate, meticulously crafted resource designed to elevate your professional profile and empower your...

    $29.99
    listed price
  17. 17
    Udemy Certificate Grade C

    Tests Pratiques Certification Linux LPIC-1

    Cet ensemble de tests pour la certification Linux LPIC-1 est conçu pour aider les candidats à acquérir les compétences essentielles en administration de systèmes Linux. La certification LPIC-1 valide la capacité à gérer...

    $19.99
    listed price
  18. 18
    Udemy Certificate Grade C

    Software Architecture Security - The Complete Guide

    Here is what my students have to say about this course:"Impressive and full of knowledge" - Pradip"Well organized and structured material. Also a good case study to get an idea about the usage of the process. Thank you M...

    $149.99
    listed price
  19. 19
    Coursera MOOC / Non-credit Grade C

    Linux Security Basics and Beyond: Unit 1

    Offered by Pearson

    Designed for both beginners and seasoned IT professionals, this course delves into the critical aspects of user security on Linux systems. Through a series of engaging lessons, you'll explore foundational concepts such a...

    $49.00
    listed price
  20. 20
    Coursera MOOC / Non-credit Grade C

    Securing Linux Systems

    Offered by LearnQuest

    In this course, we look at security and the Linux operating system. The course material is a good for anyone preparing for the Linux Foundation Certified IT Associate (LFCA) exam or just interested in learning more about...

    $49.00
    listed price

What the prices here tell you

The 20 priced courses on this page run from $19.99 to $199.99, with the middle of the range around $49.00 — a spread of $180.00. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.

Who is behind these courses

These courses come from Coursera and Udemy. The platforms differ in how they sell: some charge once per course, others expect a subscription, and the listed price is not always what you pay at checkout after a promotion. 4 of these are produced by a named university or institution, including University of Colorado System, Birla Institute of Technology & Science, Pilani and Illinois Tech — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.

Before you enrol

Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.

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