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.

Universiteit Leiden
Skills you'll gain: Risk Management, Operational Risk, Risk Mitigation, Risk Analysis, Safety and Security, Hazard Analysis, Cybersecurity, Environmental Issue, Public Health
★ 4.7 (228) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Authorization (Computing), Hardening, Data Storage, Data Security, Security Controls, Data Storage Technologies, Role-Based Access Control (RBAC), Identity and Access Management, Application Security, Information Assurance, Software Installation, Endpoint Security, Disaster Recovery, Information Systems Security, Data Management, Enterprise Security, System Configuration, Infrastructure Security, Computer Hardware
★ 4.7 (161) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Management, Infrastructure as Code (IaC), Azure Active Directory, Microsoft Azure, Identity and Access Management, Role-Based Access Control (RBAC), Active Directory, Enterprise Architecture, User Provisioning, IT Management, User Accounts, Authorization (Computing), Cloud Deployment, Authentications, Self Service Technologies
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Cyber Threat Intelligence, Cyber Operations, Cyber Threat Hunting, Threat Modeling, Cybersecurity, Cyber Security Strategy, Network Security, MITRE ATT&CK Framework, Intrusion Detection and Prevention, Cyber Attacks, Linux Commands, Linux, Cyber Engineering, Network Administration, Operating System Administration, Hardening, Network Monitoring, Exploitation techniques, Security Awareness, Operating Systems
★ 4.7 (6) · Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Cyber Threat Hunting, Cyber Threat Intelligence, Threat Detection, Threat Management, Endpoint Detection and Response, Cybersecurity, Security Information and Event Management (SIEM), Anomaly Detection, Generative AI, Endpoint Security, Event Monitoring, Digital Forensics, Network Analysis, Linux
★ 4.5 (139) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cyber Security Assessment, Cybersecurity, Scenario Testing, Simulations, Infrastructure Security, Computer Security Incident Management, Incident Response, Security Controls, Network Security, Role-Based Access Control (RBAC), Risk Management Framework, Disaster Recovery, Encryption
★ 4.6 (48) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Agentic Workflows, Responsible AI, AI Workflows, AI Enablement, AI Product Strategy, Environmental Social And Corporate Governance (ESG), Agentic systems, Decision Intelligence, Microsoft Power Platform, AI Security, Microsoft Copilot, Data Strategy, Governance Risk Management and Compliance, Risking, Cyber Governance, Governance, Data Governance, Business Transformation, Solution Architecture, Accountability Frameworks
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Network Troubleshooting, Display Devices, Cloud Computing Architecture, Networking Hardware, Dynamic Host Configuration Protocol (DHCP), Cloud Computing, Firewall, Virtual Networking, Mobile Security, Network Infrastructure, USB, Computer Networking, Cloud Services, Software Installation, Network Support, Microarchitecture, IT Infrastructure, System Configuration, Data Storage, Information Technology
★ 4.5 (94) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cybersecurity, Security Controls, Role-Based Access Control (RBAC), Authorization (Computing), Data Security, Infrastructure Security, Cyber Security Policies, Identity and Access Management, Information Systems Security, Data Access, Enterprise Security, User Provisioning, Authentications, Multi-Factor Authentication
★ 4.8 (174) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Delivery, Test Driven Development (TDD), Unit Testing, Continuous Deployment, Continuous Integration, Test Script Development, Program Development, CI/CD, Agile Methodology, Test Automation, Development Testing, Mockups, Test Case, Agile Software Development, Software Testing, Debugging, Software Development, Python Programming, Version Control, Requirements Analysis
★ 4 (83) · Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), AI Enablement, Artificial Intelligence, AI Product Strategy, Artificial Neural Networks, Deep Learning, Applied Machine Learning, AI literacy, Responsible AI, Data Ethics, Machine Learning, Business
★ 4.8 (1K) · Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Responsible AI, Incident Response, AI Security, Computer Security Incident Management, Incident Management, Fraud detection, Threat Detection, Security Management, Anomaly Detection, Security Testing, Cyber Attacks, Threat Modeling, Data Ethics, Cybersecurity, Cyber Operations, Network Security, Malware Protection, Crisis Management, Machine Learning, Generative Adversarial Networks (GANs)
★ 5 (7) · Intermediate · Specialization · 3 - 6 Months