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25 Best Security Fundamentals Courses Online

We compared 25 Security Fundamentals courses currently listed on Udemy, Coursera and edX, priced from $19.99 to $199.99. 12 of them teach the subject directly and 13 are built around a certification exam. 2 come from a named university or institution, including University of Colorado System and University of Denver. 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 compared
25
Price range
$19.99 – $199.99
Providers
Udemy, Coursera, edX
Last updated
30 Aug 2026
How these 25 courses were chosen

Every course below is a real, currently listed course from Udemy, Coursera, edX, matched to "security fundamentals" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.

There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $199.99, as listed by the provider when we last updated the page.

  1. 1
    Udemy Certificate Certification prep

    Simulado SC-900 Microsoft Security Fundamentals

    Apresentamos o Simulado SC-900 Microsoft Security Fundamentals (com respostas), uma excelente oportunidade para quem deseja se preparar de forma eficaz para o exame oficial da Microsoft. Este simulado é composto por três...

    $34.99
    listed price
  2. 2
    Udemy MOOC / Non-credit Certification prep Lowest price here

    SC-900 Microsoft Security Fundamentals Exam Prep 2026

    Master Microsoft Security, Compliance, and Identity concepts with a powerful, exam-focused learning experience designed for serious learners. This advanced-level course delivers a structured and comprehensive question ba...

    $19.99
    listed price
  3. 3
    Udemy MOOC / Non-credit Certification prep

    Microsoft SC-900 Security Fundamentals – Unofficial

    This course is not sponsored by or affiliated with Microsoft Corporation.Prepare with confidence for the Microsoft Security, Compliance, and Identity Fundamentals (SC-900) exam using this unofficial question-based learni...

    $19.99
    listed price
  4. 4
    Coursera MOOC / Non-credit Certification prep

    Exam Prep SC-900: Microsoft Certified Security Fundamentals

    Offered by Whizlabs

    The SC-900: Microsoft Security, Compliance, and Identity Fundamentals Exam Prep Specialization is designed for learners starting their journey in Microsoft’s security ecosystem. It provides foundational knowledge of core...

    $49.00
    listed price
  5. 5
    Coursera MOOC / Non-credit University-backed

    Cybersecurity for Business

    Offered by University of Colorado System

    It seems anymore that you can't listen to the news without hearing of a data breach. You may have heard it said before that there are 2 types of companies out there, the ones who have been breached and those who will be...

    $49.00
    listed price
  6. 6
    edX MOOC / Non-credit University-backed

    Try It: Cybersecurity Basics

    Offered by University of Denver

    Do you want to add cybersecurity to your professional skill set? Join this free introductory course to learn cybersecurity basics — and without any prior experience. You’ll learn about the Confidentiality, Integrity, and...

  7. 7
    Udemy Certificate

    6 Exams GCP CDL Google Cloud Digital Leader

    Step into the world of Google Cloud with a course built to sharpen your knowledge, strengthen your confidence, and prepare you to pass the Google Cloud Digital Leader Certification on your very first attempt.  This...

    $19.99
    listed price
  8. 8
    Udemy Certificate

    [NEW] Cisco Certified Network Associate (CCNA)

    Detailed Exam Domain CoverageNetwork Fundamentals (20%) Topics: IPv4 addressing, VLANs, EtherChannelNetwork Access (20%) Topics: Ethernet technologies, Wireless LAN concepts, LAN access technologiesIP Connectivity (25%)...

    $99.99
    listed price
  9. 9
    Udemy Certificate

    The Ultimate CISSP prep course 2023 - Domain 1

    The Ultimate CISSP prep course 2023 is designed to provide a deep understanding of the key concepts, principles, and best practices related to security and risk management in the CISSP Domain 1. Through engaging lec...

    $19.99
    listed price
  10. 10
    Udemy Certificate

    CCNA Network Security and Network Programmability Essentials

    Hi there,Welcome to " CCNA Network Security and Network Programmability Essentials " courseCCNA Networking | Learn Network Security and Network Programmability Basics for CCNA 200-301 and a career in NetworkingNetwork Se...

    $199.99
    listed price
  11. 11
    Udemy Certificate

    LPI Security Essentials (020-100) Complete Course

    ** Taught by a Best Selling IT Certification Instructor **Taught by an expert in information technology and cybersecurity with over 20 years of experience, this course is a fun way to master the fundamentals of cloud com...

    $199.99
    listed price
  12. 12
    Udemy Certificate

    Simulado Fundamentos Ethical Hacking

    Este simulado foi elaborado para fornecer aos participantes as habilidades e conhecimentos necessários para auxiliar na preparação do exame de certificação para hackers éticos ou profissionais de segurança cibernética. A...

    $34.99
    listed price
  13. 13
    Udemy MOOC / Non-credit

    RHCE Training for Red Hat Enterprise Linux

    Preparing for RHCE-level certification requires more than memorizing commands. Success comes from understanding Linux administration concepts, automation workflows, troubleshooting techniques, and enterprise-level operat...

    $19.99
    listed price
  14. 14
    Udemy Certificate

    The Ultimate ISC2 Certified in Cybersecurity CC Course 2026

    Master Cybersecurity Fundamentals and Pass Your ISC2 CC Exam with Confidence At Your First Attempt!Certified in Cybersecurity (CC) by ISC2 – 2026 Updated Course!Now Includes CAT Format Preparation for 1st October 2025 Ch...

    $24.99
    listed price
  15. 15
    Coursera Certificate

    Mastering Operating Systems

    Offered by Illinois Tech

    This specialization provides comprehensive training in Microsoft Windows, Linux, and Open Source operating systems. Covering installation, configuration, and security fundamentals, it equips IT professionals with essenti...

    $49.00
    listed price
  16. 16
    edX MOOC / Non-credit

    Introduction to SecOps on GDC

    Offered by Google Cloud

    This course provides a high-level overview of security fundamentals on the GDC platform.

    $20.00
    listed price
  17. 17
    Udemy MOOC / Non-credit Certification prep

    SC-900 Microsoft Security Compliance & Identity Fundamentals

    Practice test for Microsoft Security, Compliance, and Identity Fundamentals:All objectives of the exam are covered in depth so you'll be ready for any question on the exam.This exam is targeted to those looking to famili...

    $19.99
    listed price
  18. 18
    Udemy Certificate Certification prep

    Microsoft SC-900: Pass on First Attempt

    Prepare with confidence for the Microsoft SC-900: Security, Compliance, and Identity Fundamentals certification through this intensive practice exam course built entirely around high-quality multiple-choice questions (MC...

    $24.99
    listed price
  19. 19
    Udemy MOOC / Non-credit Certification prep

    CompTIA Security+ (SY0-701) Pruebas de Defensa Cibernética

    Embarcarse en el camino hacia la certificación CompTIA Security+ (SY0-701) puede parecer una tarea desafiante para muchos aspirantes a profesionales de TI, estudiantes y personas en transición de carrera. La cibersegurid...

    $19.99
    listed price
  20. 20
    Udemy Certificate Certification prep

    MS-900 Exam Prep: Microsoft 365 Fundamentals Course

    Want to learn Microsoft 365? Whether it's Office 365 ProPlus, Windows 10, or Enterprise Mobility + Security that you need to brush up on, this MS-900 course will provide you with a solid foundation which will enhance you...

    $19.99
    listed price
  21. 21
    Udemy Certificate Certification prep

    SC-900 Simulados: 5 Provas Comentadas - Atualizado 2026

    Este curso foi criado para ajudar estudantes e profissionais de TI que desejam se preparar para a certificação SC-900: Microsoft Security, Compliance, and Identity Fundamentals por meio de simulados práticos e questões c...

    $34.99
    listed price
  22. 22
    Udemy MOOC / Non-credit Certification prep

    Simulado SC 900 - Preparatório para o exame BÔNUS

    Simulado SC-900: Fundamentos de Segurança, Conformidade e Identidade da Microsoft AzureEste simulado foi cuidadosamente elaborado para replicar o formato e o estilo do exame oficial SC-900 da Microsoft Azure. Composto po...

    $34.99
    listed price
  23. 23
    Udemy Certificate Certification prep

    Cisco CCNA 200-301: VLANs, STP & Switching (Part 2/6)

    Course DescriptionThis course is the Second Part of the CCNA 200-301 Video Series, taught by Triple CCIE Certified Trainer Sikandar Shaik (CCIE ×3 – RS/SP/SEC).This module helps you prepare for the Cisco Certified Networ...

    $19.99
    listed price
  24. 24
    Udemy Certificate Certification prep

    Cisco CCNA 200-301 Complete A-Z Cisco CCNA Networking Course

    ccna, networking, ccna 200-301, cisco, cisco ccna, network, cisco ccna 200-301, ccna security, internet protocol, network protocols, ethernet, wireless, switchingHello,Welcome to " Cisco CCNA 200-301 Complete A-Z Cisco C...

    $199.99
    listed price
  25. 25
    Udemy Certificate Certification prep

    Certification Cisco CCNA 200-301 : 720 QCM, 6 examens blancs

    Cette préparation complète à la certification Cisco CCNA 200-301 vous permet de :Consolider vos compétences réseau à travers 720 QCM répartis en 6 examens blancs complets.Travailler sur des questions conformes au référen...

    $19.99
    listed price

Best Security Fundamentals Courses Online compared

# Course Provider Offered by Price
1 Simulado SC-900 Microsoft Security Fundamentals Udemy $34.99 View →
2 SC-900 Microsoft Security Fundamentals Exam Prep 2026 Udemy $19.99 View →
3 Microsoft SC-900 Security Fundamentals – Unofficial Udemy $19.99 View →
4 Exam Prep SC-900: Microsoft Certified Security Fundamentals Coursera Whizlabs $49.00 View →
5 Cybersecurity for Business Coursera University of Colorado System $49.00 View →
6 Try It: Cybersecurity Basics edX University of Denver View →
7 6 Exams GCP CDL Google Cloud Digital Leader Udemy $19.99 View →
8 [NEW] Cisco Certified Network Associate (CCNA) Udemy $99.99 View →
9 The Ultimate CISSP prep course 2023 - Domain 1 Udemy $19.99 View →
10 CCNA Network Security and Network Programmability Essentials Udemy $199.99 View →
11 LPI Security Essentials (020-100) Complete Course Udemy $199.99 View →
12 Simulado Fundamentos Ethical Hacking Udemy $34.99 View →
13 RHCE Training for Red Hat Enterprise Linux Udemy $19.99 View →
14 The Ultimate ISC2 Certified in Cybersecurity CC Course 2026 Udemy $24.99 View →
15 Mastering Operating Systems Coursera Illinois Tech $49.00 View →
16 Introduction to SecOps on GDC edX Google Cloud $20.00 View →
17 SC-900 Microsoft Security Compliance & Identity Fundamentals Udemy $19.99 View →
18 Microsoft SC-900: Pass on First Attempt Udemy $24.99 View →
19 CompTIA Security+ (SY0-701) Pruebas de Defensa Cibernética Udemy $19.99 View →
20 MS-900 Exam Prep: Microsoft 365 Fundamentals Course Udemy $19.99 View →
21 SC-900 Simulados: 5 Provas Comentadas - Atualizado 2026 Udemy $34.99 View →
22 Simulado SC 900 - Preparatório para o exame BÔNUS Udemy $34.99 View →
23 Cisco CCNA 200-301: VLANs, STP & Switching (Part 2/6) Udemy $19.99 View →
24 Cisco CCNA 200-301 Complete A-Z Cisco CCNA Networking Course Udemy $199.99 View →
25 Certification Cisco CCNA 200-301 : 720 QCM, 6 examens blancs Udemy $19.99 View →

Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.

What the prices here tell you

The 24 priced courses on this page run from $19.99 to $199.99, with the middle of the range around $24.99 — 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 Udemy, Coursera and edX. 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. 2 of these are produced by a named university or institution, including University of Colorado System and University of Denver — which usually means a fixed syllabus and a recognised certificate, rather than an individual instructor’s own course.

Courses versus exam preparation

13 of the entries here are built around a certification exam rather than teaching Security Fundamentals from scratch. They are the right choice only if you already know the material and want to pass a specific exam; if you are starting out, pick one of the taught courses first and come back to exam preparation afterwards.

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 on 30 August 2026 — 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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