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.

Infosec
Skills you'll gain: Cyber Governance, Security Management, IT Management, Cybersecurity, Governance, Leadership Studies, Cyber Security Strategy, Information Assurance, Leadership, Change Management, Governance Risk Management and Compliance, Organizational Change
★ 4.4 (90) · Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Responsible AI, Machine Learning Methods, Data Ethics, Artificial Intelligence, Machine Learning Algorithms, Generative AI, AI Product Strategy, Machine Learning, AI literacy, Artificial Intelligence and Machine Learning (AI/ML), Applied Machine Learning, OpenAI, Anthropic Claude, Supervised Learning, AI Integrations, Market Intelligence, ChatGPT, Emerging Technologies, Deep Learning, Human Factors
★ 4.4 (57) · Beginner · Course · 1 - 3 Months

Pohang University of Science and Technology(POSTECH)
Skills you'll gain: Internet Of Things, Cloud Applications, Cloud Development, Cloud Platforms, IBM Cloud, Application Development, Cloud Services, Cloud Technologies, Cloud Computing, Google Cloud Platform, Cloud-Based Integration, Microsoft Azure, AI Integrations, Amazon Web Services, Emerging Technologies, Network Protocols, Dataflow
★ 4.3 (323) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Ethics, Responsible AI, AI Security, Machine Learning, Information Privacy, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Data Security, Algorithms
Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Electrical Systems, Electric Power Systems, Electrical Power, Energy and Utilities, Electrical Equipment, Three-Phase, High Voltage, Wiring Diagram, Electrical Engineering, Systems Analysis, Failure Analysis, Engineering Analysis, Mathematical Modeling, Simulation and Simulation Software, Engineering Calculations, Simulations, Network Analysis
★ 4.4 (25) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Deployment, Application Deployment, Google App Engine, Microservices, Cloud Infrastructure, Cloud Security, CI/CD, Cloud Applications, Network Architecture, Google Cloud Platform, Site Reliability Engineering, Service Level, Cloud Computing Architecture, Continuous Deployment, IT Security Architecture, Cloud Storage, DevOps, Kubernetes, Network Planning And Design, Service Design
★ 4.8 (144) · Advanced · Course · 1 - 3 Months

Infosec
Skills you'll gain: Security Management, Cyber Governance, IT Management, Cybersecurity, Cyber Security Strategy, Security Strategy, Key Performance Indicators (KPIs), Leadership and Management, Internal Communications, Leadership, Performance Metric, Program Management, Communication, Stakeholder Communications
★ 4.7 (49) · Beginner · Course · 1 - 4 Weeks

École normale supérieure
Skills you'll gain: Theoretical Computer Science, Combinatorics, Algorithms, Operations Research, Graph Theory, Applied Mathematics, Model Optimization, Advanced Mathematics, Linear Algebra, Mathematical Modeling, Network Model, Probability, Probability & Statistics
★ 4.8 (46) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Email Security, Microsoft Outlook, Calendar Management, Gmail, Meeting Facilitation, Organizational Skills, Microsoft Office, Google Workspace, Scheduling, Encryption, Productivity Software
★ 4.7 (84) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Bootstrap (Front-End Framework), Web Design and Development, Web Development, Web Applications, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Browser Compatibility, User Interface and User Experience (UI/UX) Design, User Experience Design, Requirements Analysis, Requirements Elicitation, Client Services, Javascript
★ 4.7 (52) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Compliance Reporting, Governance, Governance Risk Management and Compliance, Compliance Management, Role-Based Access Control (RBAC), Project Management, Data Governance, Security Controls, Compliance Auditing, Project Management Software, Auditing, Identity and Access Management, User Provisioning
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Disaster Recovery, Server Administration, Windows Servers, Microsoft Servers, Servers, Network Troubleshooting, Systems Administration, VMware ESX Servers, IT Infrastructure, Linux Servers, Virtualization and Virtual Machines, Virtualization, Hardware Troubleshooting, Operating System Administration, vCenter Server Management, Virtual Machines, Data Storage Technologies, IT Automation, Remote Access Systems, Data Maintenance
Intermediate · Course · 1 - 4 Weeks