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

Coursera

University of Maryland, College Park

Cybersecurity for Everyone (Coursera)

Security & Networking

Discover the fundamentals of cybersecurity in an engaging course led by an expert from the National Security Agency (NSA). Whether you're a professional looking to enhance your skills or a non-technical individual wanting to understand basic protections, this course offers practical insights and strategies to safeguard against cyber threats. Join 'Cybersecurity for Everyone' now!

Sep 21st 2026

5-12 Weeks

Security Cybersecurity Hacking

Coursera

Infosec

JavaScript Security Refreshers (Coursera)

Security & Networking

Discover the secrets to safeguarding your web applications with our JavaScript Security Refreshers course. Whether you're a seasoned developer or new to JavaScript, this course provides an in-depth look at securing your code against common vulnerabilities. From understanding basic JavaScript concepts to mastering authentication techniques and exploring browser and Node.js security, we've got you covered.

Sep 21st 2026

2 Weeks

Cryptography Security Javascript

Coursera

Infosec

JavaScript Security Part 3 (Coursera)

Security & Networking

Unlock the secrets of advanced JavaScript security in 'JavaScript Security Part 3'. This Coursera course will guide you through the intricacies of serverless JavaScript, ensuring your applications are robust and secure. Additionally, you'll gain valuable knowledge on securing your web developer desktop environment to protect against potential threats.

Sep 21st 2026

2 Weeks

Security Javascript Node.js

Coursera

Infosec

JavaScript Security part 2 (Coursera)

Security & Networking

Dive into the advanced world of JavaScript security with 'JavaScript Security Part 2'. This course will equip you with essential knowledge on expressions, prototype pollution, npm ecosystem modules, and supply chain vulnerabilities. Whether you're a developer looking to fortify your applications or an enthusiast eager to learn more about web application safety, this course is designed for you.

Sep 21st 2026

3 Weeks

Security Javascript Supply Chain

Coursera

Google

Segurança de TI: defesa contra as artes negras digitais (Coursera)

Security & Networking

Este curso introdutório em Segurança de TI oferece uma compreensão profunda das técnicas necessárias para proteger sistemas e dados contra ataques cibernéticos. Desde encriptação até autenticação, autorização e contabilidade, você aprenderá os fundamentos essenciais para garantir a segurança da informação em um mundo digital cada vez mais complexo.

Sep 21st 2026

5-12 Weeks

Security Networks Information Technology

Coursera

Google

Estrutura e Funcionamento das Redes de Computadores (Coursera)

Security & Networking

Este curso oferece uma compreensão profunda das redes de computadores, abordando desde os conceitos básicos até as complexidades modernas da tecnologia de rede. Aprenda sobre protocolos, nuvem computing e aplique conhecimentos práticos para resolver problemas reais em ambientes de TI.

Sep 21st 2026

5-12 Weeks

TCP/IP Cloud Computing Protocols

Coursera

Google

Sistemas operativos y tú: Convertirse en un usuario avanzado (Coursera)

Security & Networking

Sumérgete en el fascinante mundo de los sistemas operativos con nuestro curso 'Sistemas Operativos y Tú: Convertirse en un Usuario Avanzado'. Este curso te guiará paso a paso, desde la comprensión básica hasta prácticas avanzadas que te permitirán administrar eficientemente tu computadora. Aprenderás a gestionar software, configurar hardware de manera efectiva y mucho más.

Sep 21st 2026

5-12 Weeks

Software Hardware Operating Systems

Coursera

Google

Seguridad informática: defensa contra las artes oscuras digitales (Coursera)

Security & Networking

Sumérgete en el mundo de la seguridad informática con nuestro curso completo. Desde entender las artes oscuras digitales hasta aplicar prácticas avanzadas de protección de datos, este curso te guiará a través de los fundamentos y técnicas necesarias para defender tus sistemas contra ataques cibernéticos.

Sep 21st 2026

5-12 Weeks

Security Accounting Information Security

Coursera

Google

Los bits y bytes de las redes informáticas (Coursera)

Security & Networking

Sumérgete en el fascinante mundo de las redes informáticas con este curso diseñado para principiantes y expertos. Desde los conceptos básicos hasta aplicaciones prácticas, aprenderás a entender, configurar y optimizar redes de computadoras. Prepárate para enfrentar desafíos reales y mejorar tus habilidades técnicas.

Sep 21st 2026

5-12 Weeks

TCP/IP Cloud Computing DNS