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.

University of Maryland, College Park
Skills you'll gain: Application Security, Secure Coding, Security Engineering, Vulnerability Assessments, Security Software, Security Testing, Cybersecurity, Collaborative Software, Cyber Security Assessment, Penetration Testing
★ 4.3 (158) · Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Threat Detection, Cybersecurity, Intrusion Detection and Prevention, Cyber Threat Intelligence, Cyber Attacks, Network Infrastructure, Network Security, Endpoint Detection and Response, Network Architecture, General Networking, Endpoint Security, Continuous Monitoring, Malware Protection, System Monitoring, Incident Response, Email Security, Anomaly Detection, Operating Systems, Identity and Access Management
★ 4.9 (8) · Intermediate · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Land Management, Environmental Science, Sustainable Systems, Sustainable Development, Natural Resource Management, Environmental Engineering and Restoration, Environmental Resource Management, Environment and Resource Management, Philanthropy, Social Studies, Climate Change Mitigation, Finance
★ 4.9 (180) · Beginner · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: Cyber Security Policies, AI Security, Cybersecurity, Threat Management, Cyber Attacks, Cyber Risk, Email Security, Endpoint Security, Mobile Security, Identity and Access Management, Remote Access Systems, Multi-Factor Authentication, Artificial Intelligence
★ 4.9 (55) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, LLM Application, Agentic Workflows, Generative AI Agents, Agentic systems, Tool Calling, LangChain, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Memory Management, Model Evaluation, Context Management, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Ethical Standards And Conduct, Social Network Analysis, Public Administration, Accountability, Policy Analysis, Law, Regulation, and Compliance, Social Sciences, Systems Thinking, Regulation and Legal Compliance, Governance, Social Justice, Disciplinary Procedures, Accountability Frameworks, Performance Measurement
★ 4.8 (1.4K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: ISO/IEC 27001, Auditing, Audit Planning, Security Controls, Cyber Security Policies, Security Management, Information Systems Security, Risk Management, Risk Management Framework, Identity and Access Management, Change Control, Record Keeping, Information Technology
★ 4.2 (10) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: AI Security, Cybersecurity, Cyber Attacks, Fraud detection, Classification Algorithms, Email Security, Threat Detection, Jupyter, Authentications, Machine Learning Algorithms, Artificial Intelligence, Applied Machine Learning, Machine Learning, Supervised Learning
★ 4.2 (105) · Intermediate · Course · 1 - 4 Weeks

Fractal Analytics
Skills you'll gain: Model Context Protocol, AI Security, AI Integrations, Tool Calling, Generative AI Agents, Security Engineering, Context Management, Interoperability, Agentic systems, Generative AI
★ 4.6 (58) · Intermediate · Course · 1 - 4 Weeks

Karlsruhe Institute of Technology
Skills you'll gain: Large Language Modeling, Natural Language Processing, Artificial Neural Networks, Deep Learning, Statistical Machine Learning, Model Evaluation, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Recurrent Neural Networks (RNNs), Language Interpretation, Translation, and Studies, Machine Learning Methods, Statistical Modeling, Multilingualism, Vocabulary
★ 4.5 (185) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Operating System Administration, Remote Access Systems, Local Area Networks, Software Installation, Command-Line Interface, Threat Management, Microsoft Windows, System Configuration, Threat Detection, Information Technology Operations, Wireless Networks, Systems Administration, Network Security, TCP/IP, Information Systems Security, Peripheral Devices, USB, Operating Systems, Computer Hardware, Data Storage Technologies
★ 4.7 (47) · Beginner · Specialization · 3 - 6 Months

Kennesaw State University
Skills you'll gain: Cyber Security Policies, Cybersecurity, Incident Response, Cyber Attacks, Computer Security Awareness Training, Computer Security Incident Management, Security Awareness, Cyber Risk, Remote Access Systems, Cyber Governance, Telecommuting, Endpoint Security, Mobile Security, Security Controls, Malware Protection, Human Factors (Security), Identity and Access Management
Beginner · Course · 1 - 3 Months