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: Scaled Agile Framework, Agile Methodology, Behavior-Driven Development, Agile Product Development, Test Driven Development (TDD), Scalability, Agile Project Management, Sprint Planning, Solution Delivery, Virtualization, Continuous Integration, Solution Architecture, Unit Testing
Beginner · Course · 1 - 4 Weeks

CertNexus
Skills you'll gain: Threat Modeling, Cybersecurity, Cyber Threat Intelligence, Threat Management, Information Systems Security, Threat Detection, Security Management, Cyber Risk, Security Strategy, Cyber Security Strategy, Risk Analysis, Computer Security, Risk Mitigation, Risk Management, Network Security, Risk Management Framework, Enterprise Risk Management (ERM), Risk Appetite, Trend Analysis, Technical Documentation
Mixed · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Web Scraping, Web Services, Restful API, JSON, Extensible Markup Language (XML), Network Protocols, Application Programming Interface (API), Data Processing, Hypertext Markup Language (HTML), Python Programming, Data Manipulation, Software Installation
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Security, Threat Modeling, Role-Based Access Control (RBAC), Cloud Security, Data Governance, Secure Coding, Data Security, DevSecOps, Infrastructure as Code (IaC), Zero Trust Network Access, Application Security, Security Controls, Security Requirements Analysis, Data Quality, Cyber Security Policies, Security Engineering, Compliance Management, Identity and Access Management, Vulnerability Management
Intermediate · Course · 3 - 6 Months

University of Colorado System
Skills you'll gain: Computer Security Awareness Training, Cybersecurity, Risk Management, Enterprise Security, Cyber Security Assessment, Vulnerability Assessments, Encryption, Data Security, Information Assurance, Authentications, Network Protocols
Beginner · Course · 1 - 3 Months

Skills you'll gain: Application Deployment, Kubernetes, Network Troubleshooting, Performance Tuning, Continuous Deployment, Network Performance Management, Network Routing, Network Security, Network Protocols, Load Balancing, Scalability
Advanced · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Threat Modeling, IT Security Architecture, Threat Detection, Security Engineering, Internet Of Things, Network Security, Infrastructure Security, Security Controls, Data Security, Cryptographic Protocols, Vulnerability Assessments, Risk Management Framework, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Context Protocol, Responsible AI, LangGraph, AI Orchestration, AI Workflows, LangChain, Agentic systems, System Monitoring, CrewAI, OpenAI API, Generative AI Agents, LLM Application, Tool Calling, Agentic Workflows, Compliance Management, Governance, AI Security, Continuous Monitoring, Artificial Intelligence, Enterprise Application Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cybersecurity, Information Technology, Cyber Security Strategy, Cyber Security Policies, Technical Support and Services, Technical Support, Information Systems Security Assessment Framework (ISSAF), Computer Security Awareness Training, Security Awareness, Application Security, ISO/IEC 27001, Network Security, Data Security, Information Assurance, General Networking, Computer Hardware
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Command-Line Interface, Network Troubleshooting, TCP/IP, Wireless Networks, Virtual Private Networks (VPN), Operating System Administration, Network Administration, General Networking, Network Protocols, Network Routers, Microsoft Windows, Linux, Network Security, Scripting, Virtualization and Virtual Machines, Artificial Intelligence
Beginner · Course · 1 - 3 Months
Starweaver
Skills you'll gain: Cloud Security, Cloud Services, Cloud Technologies, Cloud Computing Architecture, Cloud Computing, Cloud Infrastructure, Incident Response, Hardening, Public Cloud, Infrastructure As A Service (IaaS), ISO/IEC 27001, Virtual Machines, Identity and Access Management, Security Controls, Amazon Web Services, NIST 800-53, Network Security, Cloud Applications, Role-Based Access Control (RBAC), Platform As A Service (PaaS)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Virtual Machines, Package and Software Management
Beginner · Course · 1 - 4 Weeks