Best Free CS: Systems, Security & Networking Courses & MOOCs

Coursera

University of Colorado System

DDoS Attacks and Defenses (Coursera)

Security & Networking

Discover how to protect your organization from Distributed Denial of Service (DDoS) attacks with this in-depth online course. From understanding the history and analyzing new threats like Mirai IoT Malware to implementing defense strategies, you'll gain a thorough knowledge of DDoS mitigation techniques. Explore A2D2, an innovative autonomous anti-DDoS network solution designed for small to medium-sized organizations.

Nov 9th 2026

4 Weeks

Security Network Security Advanced System Security Design Specialization

Coursera

University of Colorado System

Advanced System Security Topics (Coursera)

Security & Networking

Dive into the intricate world of advanced system security with our expert-led online course. From understanding Role-Based Access Control (RBAC) to implementing Attribute-Based Access Control (ABAC), this course is designed for those who want to delve deep into secure access policies, leveraging technologies like Docker and AWS IAM. Learn about XACML 3.0 and its application in securing web documents and network resources with attribute certificates. This course will equip you with the knowledge and tools necessary to manage and specify complex access controls effectively.

Nov 9th 2026

4 Weeks

Network Security Advanced System Security Design Specialization

Coursera

LearnQuest

Azure Infrastructure Fundamentals (Coursera)

Security & Networking

Dive into the world of cloud computing with our Azure Infrastructure Fundamentals course. Designed for beginners and professionals alike, this course will equip you with the skills needed to leverage Microsoft's Azure platform effectively. From understanding basic concepts to mastering advanced features, we'll guide you through creating, managing, and optimizing applications and services in a cloud environment.

Nov 9th 2026

5-12 Weeks

SaaS Cloud Computing Microsoft Azure

Coursera

Google Cloud

Google Workspace Mail Management (Coursera)

Security & Networking

Unlock the full potential of Google Workspace's email management capabilities with our specialized course. Designed for administrators and professionals looking to enhance their organization's email security and efficiency, this course covers essential topics such as spam protection, data loss prevention, mail routing, and more. Whether you're aiming to safeguard your company's communications or optimize your workflow, this course provides the knowledge and skills needed to succeed.

Nov 9th 2026

1 Week

DNS G Suite G Suite Administrator

Coursera

Google Cloud

Google Workspace Security (Coursera)

Security & Networking

Dive into the world of Google Workspace Security with our expert-led course designed for administrators and IT professionals. Master essential security practices including enforcing strong passwords, enabling two-step verification, managing application security, and integrating G Suite with third-party applications. This course is part of the Google Workspace Administration series and will equip you with the skills to safeguard your organization's data effectively.

Nov 9th 2026

1 Week

Security Computer Science Network Security

Coursera

University of California, Davis

Exploiting and Securing Vulnerabilities in Java Applications (Coursera)

Security & Networking

This course delves into the world of Java application security by first understanding how attackers exploit common vulnerabilities such as injection flaws, cross-site scripting (XSS), and authentication breaches. You'll then learn defensive strategies to fortify your applications against these threats, ensuring data integrity and user trust.

Nov 9th 2026

4 Weeks

Programming Java Security

Coursera

University of California, Davis

Identifying Security Vulnerabilities in C/C++Programming (Coursera)

Security & Networking

Dive into advanced techniques for securing C/C++ code with our 'Identifying Security Vulnerabilities in C/C++ Programming' course. This course builds on foundational knowledge to help you identify and remediate vulnerabilities, ensuring the safety and reliability of your applications.

Nov 9th 2026

4 Weeks

Programming Security C++

Cyber Security Basics: A Hands-on Approach (edX)

EdX

Universidad Carlos III de Madrid - UC3M,UC3Mx

Cyber Security Basics: A Hands-on Approach (edX)

Security & Networking

Discover the essential skills needed to secure your personal and professional digital environments in 'Cyber Security Basics: A Hands-on Approach'. This course is designed for beginners, offering practical knowledge on how to defend against cyber attacks and ensure data privacy.

Self Paced

Self-Paced

Security Malware Cybersecurity

Coursera

Association of International Certified Professional Accountants - AICPA

Understanding, Using, and Securing Crypto and Digital Assets (Coursera)

Security & Networking

Dive into the world of cryptocurrencies and digital assets with our expert-led course. Gain a deep understanding of blockchain technology, learn effective ways to use and secure your crypto investments, and stay ahead in the rapidly evolving digital asset landscape.

Nov 9th 2026

1 Week

Video Digital Security