Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Johns Hopkins University
Skills you'll gain: AI Security, Anomaly Detection, Generative Adversarial Networks (GANs), Generative AI, Intrusion Detection and Prevention, Malware Protection, Fraud detection, Cyber Threat Hunting, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Feature Engineering, Network Analysis, Cyber Attacks, Model Evaluation, Applied Machine Learning, Email Security, Cloud Security, Network Security, Jupyter
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Virtual Networking, Network Routing, Network Architecture, Hybrid Cloud Computing, Network Planning And Design, Amazon Web Services, Virtual Private Networks (VPN), Cloud Computing Architecture, Network Infrastructure, Network Security, Cloud Computing, Network Analysis, Operations Management
Intermediate · Course · 1 - 4 Weeks

Icahn School of Medicine at Mount Sinai
Skills you'll gain: Bioinformatics, Unsupervised Learning, Biology, Machine Learning Algorithms, Data Processing, Systems Engineering, Linux Commands
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Network Architecture, Network Protocols, Wireless Networks, Network Performance Management, Network Planning And Design, Network Infrastructure, Communication Systems, Telecommunications, Emerging Technologies
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Digital Forensics, Disaster Recovery, Business Continuity Planning, Safety and Security, Incident Management, Intrusion Detection and Prevention, Change Control, Continuous Monitoring, Security Information and Event Management (SIEM), Security Controls, Patch Management, Threat Detection, Cybersecurity, Vulnerability Management, Configuration Management
Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Network Analysis, Social Sciences, Sociology, Social Studies, Social Impact, Agentic systems, Systems Thinking, Economics, Policy, and Social Studies, Simulations, Culture, Game Theory, Graph Theory, Behavioral Economics, Innovation
Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: AI Security, Information Privacy, Personally Identifiable Information, Data Security, Threat Modeling, Vulnerability Assessments, Responsible AI, Data Governance, Data Management, Cyber Security Strategy, Data Integrity, Data Loss Prevention, Cloud Security, Cybersecurity, Security Awareness, Artificial Intelligence and Machine Learning (AI/ML), Security Management, Security Controls, Cyber Operations, Data Science
Beginner · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Social Network Analysis, Network Analysis, Graph Theory, Technical Communication, Data Structures, Algorithms, Analysis, Computer Science, Research
Mixed · Course · 1 - 3 Months

Skills you'll gain: Virtual Networking, Enterprise Architecture, Virtualization, Network Architecture, Network Planning And Design, Virtual Private Networks (VPN), Computer Networking, Virtual Machines, Network Infrastructure, Wide Area Networks, Software-Defined Networking, Wireless Networks, Local Area Networks, Network Switches, Network Routers, Network Protocols
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Markup Language (XML), Network Protocols, YAML, Automation, Network Engineering, Python Programming
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Deployment, Multi-Cloud, Cloud Security, AI Security, MLOps (Machine Learning Operations), DevSecOps, Cloud Management, Investigation, Microservices, Site Reliability Engineering, Security Controls, CI/CD, System Monitoring, Infrastructure as Code (IaC), Compliance Management, Automation, Kubernetes, Docker (Software), Incident Management, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Security Awareness, Cybersecurity, Cyber Attacks, Cyber Security Policies, Threat Detection, ISO/IEC 27001, Security Controls, Computer Security, Network Security, Risk Management Framework, Information Systems, General Data Protection Regulation (GDPR)
Beginner · Course · 1 - 3 Months