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.

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Amazon Web Services, Virtual Networking, Network Infrastructure, AWS CloudFormation, Network Routing, Amazon Elastic Compute Cloud, Infrastructure as Code (IaC), Network Security, Load Balancing, Automation
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Cyber Governance, Security Awareness, Law, Regulation, and Compliance, Security Strategy, Human Factors (Security), Culture Transformation, Cyber Attacks, Mobile Security, Cyber Risk, Enterprise Security, Data Ethics, Cyber Security Strategy, Cybersecurity, Strategic Leadership, Cyber Operations, Leadership and Management, Leadership, Organizational Leadership, Leadership Development, Team Leadership
Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Secure Coding, Open Web Application Security Project (OWASP), Authentications, Authorization (Computing), Microsoft Copilot, Application Security, Data Validation, Web Applications, Security Controls, Vulnerability Assessments, Data Security, Data Integrity, Encryption
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Browser Compatibility
Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Open Web Application Security Project (OWASP), Encryption, Application Security, Vulnerability Assessments, Data Security, Exploitation techniques, Security Controls, Authentications, Vulnerability Management, Personally Identifiable Information
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Application Security, Secure Coding, Security Testing, Vulnerability Scanning, Security Controls, Intrusion Detection and Prevention, Security Awareness, Web Applications, Browser Compatibility, Computer Programming
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Cloud Security, Data Security, Cloud Services, Cloud Storage, Personally Identifiable Information, General Data Protection Regulation (GDPR), Information Privacy, Data Governance, Data Integrity, Cloud Platforms, Security Controls, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Relational Databases, Encryption, SQL
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Administration, Network Troubleshooting, TCP/IP, Computer Networking, Local Area Networks, General Networking, Network Switches, Network Routers, Simulations, Configuration Management, Information Technology, Verification And Validation, System Testing
Intermediate · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Microsoft Azure, Threat Modeling, Cloud Security, Continuous Monitoring, System Monitoring, Security Information and Event Management (SIEM), Security Management, Threat Detection, Threat Management, Application Performance Management, Event Monitoring, Vulnerability Management, Brute-force attacks, Incident Response, Query Languages
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Data Sharing, Security Controls, Authentications
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Network Architecture, Network Planning And Design, Cloud Computing Architecture, Virtual Networking, Google Cloud Platform, Network Routing, Computer Networking, Network Security, Network Troubleshooting, Network Analysis, Virtual Private Networks (VPN), Firewall, Load Balancing, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Embeddings, PyTorch (Machine Learning Library), Artificial Neural Networks, Image Analysis, Deep Learning, Applied Machine Learning, Convolutional Neural Networks, Computer Vision
Advanced · Guided Project · Less Than 2 Hours