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: Linux Commands, Linux, TCP/IP, Scripting, Shell Script, Bash (Scripting Language), Network Monitoring, Network Analysis, Network Security, Network Protocols
★ 4.6 (10) · Intermediate · Guided Project · Less Than 2 Hours

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
★ 4.4 (38) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Threat Modeling, Open Web Application Security Project (OWASP), DevSecOps, Secure Coding, Application Security, Threat Detection, Security Testing, Continuous Delivery, Continuous Integration, Vulnerability Assessments, CI/CD, Vulnerability Scanning, Security Controls, Risk Management Framework
Advanced · Course · 1 - 4 Weeks

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

Infosec
Skills you'll gain: Data Security, Personally Identifiable Information, Information Assurance, Data Governance, Data Loss Prevention, Data Management, Data Integrity, Threat Management, Data Storage, Security Controls, Threat Detection, Encryption, Identity and Access Management
★ 4.7 (25) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Security Information and Event Management (SIEM), MITRE ATT&CK Framework, AI Security, Cyber Threat Intelligence, Continuous Monitoring, Threat Detection, Threat Management, Event Monitoring, AI Integrations, Computer Security Incident Management, Analysis, Incident Response, Cybersecurity, Data Integration, Automation
Intermediate · Course · 1 - 3 Months

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: Security Engineering, Security Requirements Analysis, Risk Management Framework, Systems Engineering, Information Systems Security Assessment Framework (ISSAF), System Implementation, Information Systems Security, Security Controls, Security Management, Information Assurance, Verification And Validation, Systems Development Life Cycle, Systems Integration, Change Control
Beginner · Course · 1 - 3 Months

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: Threat Modeling, Application Security, Secure Coding, Authentications, OAuth, Software Testing, Software Development Life Cycle, Unit Testing, Security Testing, Unified Modeling Language, Application Design, Authorization (Computing), Single Sign-On (SSO), Security Software, Software Development, Data Validation, Cyber Security Assessment, Cyber Security Strategy, Cybersecurity, Role-Based Access Control (RBAC)
Intermediate · Course · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Amazon CloudWatch, Event Monitoring, System Monitoring, Amazon Web Services, Continuous Monitoring, Amazon Elastic Compute Cloud, Cloud Security, Linux Administration, Intrusion Detection and Prevention, Threat Detection, Cloud Management, Brute-force attacks
Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: CI/CD, Continuous Deployment, Application Deployment, Cloud Deployment, Restful API, Azure DevOps Pipelines, Middleware, Software Testing, API Design, Azure DevOps, Security Controls, Postman API Platform, API Testing
Intermediate · Course · 1 - 3 Months