Updated in May 2025.

This course now 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 course. Master the art of securing systems and networks with this comprehensive course designed to equip you with essential skills in cybersecurity. From understanding command-line tools to fortifying wireless LANs, this course covers a broad spectrum of topics vital for IT security professionals. Gain the expertise to safeguard networks, systems, and data from a variety of threats and vulnerabilities. Begin your journey by exploring essential command-line tools and techniques used in network reconnaissance and analysis. Progress to advanced topics like centralized logging, cybersecurity benchmarks, and practical labs on tools like Nmap and Wireshark. Each module blends theoretical understanding with hands-on practice, ensuring a robust learning experience. Dive deeper into securing individual systems, LANs, and wireless networks. Learn to mitigate malware, enforce secure configurations, and deploy encryption methods to protect data. Through case studies, labs, and interactive discussions, you'll understand advanced concepts such as intrusion prevention, VPNs, and zero-trust architecture. This course is tailored for IT professionals, students, and enthusiasts aiming to excel in cybersecurity. Basic IT knowledge is recommended to make the most of the course. Whether you are starting your journey or looking to expand your expertise, this course is your gateway to mastering network security.