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

Google Cloud
Skills you'll gain: Gemini, Google Cloud Platform, Virtual Networking, Network Planning And Design, Prompt Engineering Tools, General Networking, Network Engineering, Network Architecture
Beginner · Course · 1 - 4 Weeks

Politecnico di Milano
Skills you'll gain: Educational Materials, Classroom Management, Course Development, Blended Learning, Teaching, Instructional Design, Instructional Strategies, Innovation, Pedagogy, Student Engagement, Resource Utilization, Network Planning And Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cyber Attacks, Data Security, Computer Security Awareness Training, Authentications, Authorization (Computing), Application Security, Security Controls, Personally Identifiable Information, Security Awareness, Identity and Access Management, Information Privacy, Cryptography, Malware Protection, Hardening, Encryption, Email Security, Vulnerability Assessments, Multi-Factor Authentication, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Intrusion Detection and Prevention, Threat Modeling, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Application Security, Encryption, Security Management, Cybersecurity, Vulnerability Scanning, Cyber Security Assessment, Endpoint Detection and Response, Vulnerability Assessments
Beginner · Specialization · 3 - 6 Months

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

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

Johns Hopkins University
Skills you'll gain: Autoencoders, Recurrent Neural Networks (RNNs), Deep Learning, Artificial Neural Networks, Reinforcement Learning, Generative AI, Generative Adversarial Networks (GANs), Unsupervised Learning, Machine Learning Methods, Artificial Intelligence and Machine Learning (AI/ML), Data Ethics, Markov Model
Intermediate · Course · 1 - 3 Months

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

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, Security Controls
Intermediate · Specialization · 1 - 3 Months

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

LearnKartS
Skills you'll gain: Cloud Computing Architecture, Identity and Access Management, Cloud Infrastructure, AWS Identity and Access Management (IAM), Virtual Machines, Cloud Security, Virtualization, Cloud Computing, Cloud Deployment, Cloud Platforms, Authorization (Computing), Role-Based Access Control (RBAC), User Provisioning, Authentications, Zero Trust Network Access, Multi-Factor Authentication, Threat Detection, Scalability
Beginner · Course · 1 - 4 Weeks