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: Data Visualization, Network Analysis, Relational Databases, Data Visualization Software, Social Network Analysis, Data Storytelling, Database Theory, Data Analysis, Data Manipulation, Human Factors, Innovation
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Network Performance Management, Network Monitoring, Performance Tuning, Google Cloud Platform, Performance Testing, Network Analysis, Hardware Architecture, Intranet
Intermediate · Project · Less Than 2 Hours

Politecnico di Milano
Skills you'll gain: Educational Materials, Instructional Design, Innovation, Higher Education, Collaboration, Learning Strategies, Adaptability, Planning, General Networking, Digital Communications, Communication Strategies
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Personally Identifiable Information, Information Systems Security, Data Governance, Information Management, Encryption, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: OSI Models, Network Security, Cloud Services, TCP/IP, Cloud Computing, Cloud Infrastructure, Software-Defined Networking, Network Architecture, Wide Area Networks, Network Protocols, General Networking, Network Routers, Network Troubleshooting, Linux, Computer Networking, Virtualization, Kubernetes, Network Administration, Network Switches, Terraform
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Authentications, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Serverless Computing, Cryptography, Risk Management Framework, Threat Modeling, Cloud Security, Infrastructure Security, Package and Software Management, Node.JS, Web Applications, Javascript, Vulnerability Management, Cloud Services, Cloud Platforms, Web Development, Identity and Access Management, Vulnerability Assessments
Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Anomaly Detection, Generative AI, Fraud detection, Intrusion Detection and Prevention, Malware Protection, Continuous Monitoring, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Feature Engineering, Network Analysis, Cyber Security Strategy, Threat Modeling, Email Security, System Design and Implementation, Network Security, Jupyter, Authentications, Deep Learning, Machine Learning Software
Intermediate · Specialization · 3 - 6 Months

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

Skills you'll gain: Product Roadmaps, Timelines, Project Schedules, Presentations, Milestones (Project Management), Kanban Principles, Project Design, Project Management, Team Management
Beginner · Guided Project · Less Than 2 Hours

Edureka
Skills you'll gain: Responsible AI, Incident Response, Data Ethics, Generative AI, LLM Application, Application Security, Large Language Modeling, Security Engineering, Threat Modeling, Cybersecurity, Security Controls, IT Security Architecture, Information Systems Security, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Machine Learning, Security Management, MLOps (Machine Learning Operations), Agentic systems, Ethical Standards And Conduct
Beginner · Specialization · 3 - 6 Months

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

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