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

Coursera

Google

Technical Support Fundamentals (Coursera)

Security & Networking

Dive into the world of IT with our introductory course on Technical Support Fundamentals. Whether you're new to technology or looking to refine your skills, this course provides a comprehensive overview of essential topics including computer hardware, software, Internet basics, troubleshooting techniques, and effective customer service strategies. Prepare for an entry-level role as an IT support specialist by mastering the fundamentals.

Nov 2nd 2026

5-12 Weeks

Software Hardware Internet

Coursera

Google

IT Security: Defense against the digital dark arts (Coursera)

Security & Networking

Discover essential IT security principles with 'IT Security: Defense against the digital dark arts'. This course equips you with knowledge on encryption, authentication, authorization, and network security solutions to protect your digital assets effectively. Dive into a multi-layered approach to cybersecurity and cultivate a culture of security within your organization.

Nov 2nd 2026

5-12 Weeks

Security Networks Information Technology

Coursera

University of Colorado System

Cloud Computing Security (Coursera)

Security & Networking

Dive into Cloud Computing Security with our expert-led course. Designed for beginners to advanced users, this course uses Amazon Web Services (AWS) as a practical learning platform. You'll learn how to securely set up cloud resources, manage user access, configure web services, and automate tasks using the AWS Command Line Interface. Whether you're looking to safeguard your business's digital assets or enhance your IT career, this course provides the knowledge and skills needed for effective cloud security.

Nov 2nd 2026

4 Weeks

Security Cloud Computing Network Security

Coursera

INSEAD

Blockchain Transformations of Financial Services (Coursera)

Security & Networking

Explore the future of finance with our 'Blockchain Transformations of Financial Services' course on Coursera. Dive into how blockchain is transforming the global financial system by eliminating inefficiencies and offering new ways to create and manage value. This course will equip you with a deep understanding of decentralized finance, smart contracts, and their impact on banking and financial services.

Nov 2nd 2026

4 Weeks

Accounting Financial Management Governance

Coursera

INSEAD

Introduction to Blockchain for Financial Services (Coursera)

Security & Networking

Dive into the revolutionary world of blockchain technology tailored specifically for financial services professionals. This introductory course will equip you with a solid understanding of how blockchain works, its potential to revolutionize business and economic activities, and key concepts like mining, hashing, and public key cryptography.

Nov 2nd 2026

5-12 Weeks

Cryptography Databases Mining

Coursera

INSEAD

Blockchain, Cryptoassets, and Decentralized Finance (Coursera)

Security & Networking

Explore the revolutionary world of Blockchain, Cryptoassets, and Decentralized Finance with this comprehensive online course. Uncover the potential to disrupt traditional finance by understanding smart contracts, cryptoassets, identity systems, and innovative business models. This course is designed for those looking to navigate the future of finance and technology.

Nov 2nd 2026

4 Weeks

Finance Business Model Blockchain

Coursera

INSEAD

Blockchain in Financial Services: Strategic Action Plan (Coursera)

Security & Networking

Embark on a transformative journey into the future of finance with 'Blockchain in Financial Services: Strategic Action Plan'. This final course in the specialization equips you with the skills needed to recognize financial industry challenges, harness blockchain technology for solutions, and craft a strategic blueprint for implementation. Whether you're an aspiring fintech entrepreneur or a seasoned professional looking to innovate within your organization, this course offers invaluable insights into leveraging blockchain for transformative change.

Nov 2nd 2026

5-12 Weeks

Strategy Positioning Business Model

Coursera

EIT Digital

Security and Privacy for Big Data - Part 1 (Coursera)

Security & Networking

Dive into the world of big data security with our foundational course. Gain expertise in cryptographic principles and access control mechanisms to safeguard your big data systems effectively. This course is designed for those looking to ensure privacy and security in their big data projects, equipping you with the knowledge to plan, implement, and maintain secure practices.

Nov 2nd 2026

1 Week

Cryptography Security Big Data

Coursera

The Hong Kong University of Science and Technology - HKUST

Information Systems Auditing, Controls and Assurance (Coursera)

Security & Networking

Dive into the world of Information Systems Auditing, Controls, and Assurance with our expert-led online course. Gain a deep understanding of IS auditing principles, learn effective control measures, and explore assurance techniques crucial for maintaining system integrity and ensuring compliance with regulatory standards.

Nov 2nd 2026

4 Weeks

Security Information Technology Risk Management