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 Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Malware Protection, Threat Modeling, Security Engineering, Network Security, Firewall, Digital Forensics, Code Review, Network Routing, Proxy Servers, Linux, Internet Of Things, Servers
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Incident Response, Computer Security Incident Management, Security Information and Event Management (SIEM), Event Monitoring, Threat Detection, General Networking, Network Security, Cybersecurity, Infrastructure Security, Computer Networking, IT Security Architecture, Technical Support and Services, Malware Protection
Mixed · Course · 1 - 4 Weeks
University of London
Skills you'll gain: Computer Science, Debugging, Development Environment, Computer Systems, Web Applications, Arithmetic, Computer Literacy, Javascript, Network Security, Computer Networking, Computer Programming Tools, Applied Mathematics, Computer Graphics, Web Design and Development, Software Development Tools, Cybersecurity, Computational Thinking, Computer Programming, General Mathematics, Problem Solving
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Agentic systems, Collaborative Software, System Design and Implementation, Interoperability, Coordination, Communication Systems, Network Protocols, Workflow Management, Case Studies, Scalability
Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Routing Protocols, Network Routing, TCP/IP, Network Protocols, Network Architecture, Network Performance Management, Computer Networking, OSI Models, Local Area Networks, Graph Theory, Algorithms
Intermediate · Course · 1 - 3 Months

Universidad de los Andes
Skills you'll gain: IT Security Architecture, Computer Security Incident Management, Network Security, Incident Response, Cryptography, Digital Forensics, Security Requirements Analysis, Penetration Testing, Information Systems Security, Threat Detection, Cloud Security, Vulnerability Assessments, Threat Modeling, Encryption, Cybersecurity, Vulnerability Management, Exploitation techniques, Data Security, Security Management, Personally Identifiable Information
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Incident Response, Business Continuity, Disaster Recovery, Cybersecurity, Security Management, Computer Security Incident Management, Crisis Management, Information Assurance
Beginner · Course · 1 - 3 Months

Council on Foreign Relations
Skills you'll gain: International Finance, Policty Analysis, Research, and Development, Negotiation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Disaster Recovery, Computer Security Incident Management, Business Continuity, Cybersecurity, Information Assurance, Cyber Security Policies, Investigation, Threat Detection, Threat Management, Digital Forensics
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: AI Workflows, Agentic Workflows, AI Orchestration, AI Security, API Testing, System Testing, Test Script Development, Context Management, Health Informatics, Performance Testing, Functional Testing, Business Logic
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Recurrent Neural Networks (RNNs), Keras (Neural Network Library), Artificial Intelligence and Machine Learning (AI/ML), PyTorch (Machine Learning Library), Vision Transformer (ViT), Large Language Modeling, Embeddings, Network Architecture
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Dashboard, Interactive Data Visualization, Power BI, Data Storytelling, Data Visualization Software, Key Performance Indicators (KPIs), Business Intelligence, Data Ethics, Collaboration, Data Governance, Data Sharing, Performance Reporting, Data-Driven Decision-Making, Statistical Reporting, Business Analytics, Data Management, Data Security, Performance Management, Continuous Deployment, Cloud-Based Integration
Intermediate · Course · 1 - 4 Weeks