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: Network Troubleshooting, Network Architecture, Virtual Local Area Network (VLAN), Virtual Private Networks (VPN), Network Administration, Network Security, Network Monitoring, Local Area Networks, Networking Hardware, Network Routers, General Networking, Network Planning And Design, Network Switches, Computer Networking, System Configuration, Routing Protocols, Wireless Networks, Network Performance Management, Network Routing, Dynamic Host Configuration Protocol (DHCP)
Intermediate · Course · 1 - 4 Weeks

CertNexus
Skills you'll gain: Application Security, Threat Modeling, Human Factors (Security), Secure Coding, Open Web Application Security Project (OWASP), Vulnerability, Computer Security, Vulnerability Management, Vulnerability Assessments, Data Security, Security Strategy, Security Controls, Cyber Security Strategy, Computer Programming, Design, Python Programming, Javascript, Design Strategies, JavaScript Frameworks, Node.JS
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Law, Regulation, and Compliance, Risk Management Framework, Business Risk Management, Regulation and Legal Compliance, Risk Analysis, Legal Risk, Enterprise Risk Management (ERM), Consulting, Risk Management, Investigation, Business Consulting, Security Strategy, Cyber Security Policies, Security Management, Crisis Management, Regulatory Requirements, Management Consulting, Enterprise Security, Threat Management, Consultative Approaches
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Cyber Attacks, Cybersecurity, Identity and Access Management, Authentications, Security Controls, Threat Management, Data Security, Information Privacy, Cyber Risk, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Data Security, Cyber Security Strategy, Vulnerability Assessments, Security Management, Threat Detection, Information Systems Security, Hardening, Security Strategy, Security Controls, Security Software, Network Security, Vulnerability Management, Identity and Access Management, Email Security, Security Awareness, Encryption, Risk Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Virtual Networking, Role-Based Access Control (RBAC), Data Persistence, Cloud Management, Continuous Deployment, Application Lifecycle Management, Cloud Deployment, Proxy Servers, Capacity Management, Application Deployment, Network Monitoring, CI/CD, Key Management, Software Versioning, Network Security, API Gateway, Identity and Access Management, Model Deployment, Security Controls, Disaster Recovery
Beginner · Specialization · 3 - 6 Months

Edureka
Skills you'll gain: AI Security, Responsible AI, Data Ethics, LLM Application, Generative AI, Google Gemini, Artificial Intelligence, Cloud Security, Governance Risk Management and Compliance, Cyber Security Strategy, Security Strategy, Artificial Intelligence and Machine Learning (AI/ML), Computer Security Awareness Training, Network Security, Security Management, Cyber Attacks, Cyber Security Policies, Natural Language Processing, Risk Management, Supply Chain
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cloud Security, Open Web Application Security Project (OWASP), Data Governance, Data Management, Data Security, Cloud API, Secure Coding, Application Security, DevSecOps, Cloud Applications, Key Management, Encryption, Information Privacy, OAuth, Cloud Storage, API Gateway, Threat Modeling, Data Encryption Standard, Risk Management Framework
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Routers, Network Architecture, Networking Hardware, Network Administration, Network Routing, Computer Networking, Virtual Networking, General Networking, Network Switches, Command-Line Interface
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: IT Security Architecture, Information Systems Security, Systems Architecture, Zero Trust Network Access, Risk Management Framework, Application Security, Computer Security, Cybersecurity, Security Management, Network Security, Security Strategy, Information Assurance, Data Security, Cyber Security Assessment, Cyber Risk, Enterprise Architecture, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Azure Active Directory, Endpoint Security
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Management, Security Controls, Asset Management, Security Strategy, IT Management, Program Management, Security Awareness, Computer Security Awareness Training, Cyber Security Strategy, IT Security Architecture, Information Management, Technology Roadmaps, Cyber Security Policies, Continuous Monitoring, Cybersecurity, Enterprise Security, Program Development, Vendor Management, Quality Management, Continuous Improvement Process
Mixed · Course · 1 - 3 Months