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.

University of Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Security Controls, Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Cryptography, Web Applications, Wireless Networks
★ 4.6 (377) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Computer Security Incident Management, Endpoint Security, Incident Management, Incident Response, ISO/IEC 27001, Security Management, Vulnerability Scanning, Digital Forensics, Risk Management, Risk Management Framework, Personally Identifiable Information, Vulnerability Assessments, Linux, Linux Administration, Infrastructure Security, Authorization (Computing), Network Security, Threat Management, Event Monitoring, Security Strategy
★ 4.7 (67) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploit development, OSI Models, Exploitation techniques, Open Web Application Security Project (OWASP), TCP/IP, Network Protocols, Network Security, Cyber Security Assessment, General Networking, Vulnerability Scanning, Cybersecurity, Prompt Engineering, Large Language Modeling, AI Security, LLM Application, Test Script Development, Scripting, Scripting Languages, Python Programming
★ 4.3 (7) · Intermediate · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Incident Response, Cyber Governance, Incident Management, Computer Security Incident Management, Safety Culture, Cyber Risk, Security Awareness, Event Monitoring, Cyber Security Strategy, Cyber Attacks, Dashboard, Threat Management, Security Management, Cyber Security Policies, Cyber Threat Intelligence, Mobile Security, Corporate Communications, Cybersecurity, Cyber Security Assessment, Cyber Operations
★ 4.7 (38) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: vSphere Networking and Storage, vCenter Server Management, VMware vSAN, vCenter Server, Virtual Networking, iSCSI Configuration, vSphere DRS & HA, Virtual Machines, Network Monitoring, Network Performance Management, Data Storage Technologies, Network Security, Data Storage, Network Switches, File Systems, Data Store, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: AI Security, Penetration Testing, Exploit development, Network Security, Exploitation techniques, Open Web Application Security Project (OWASP), Security Testing, Cyber Security Assessment, Cyber Operations, Computer Security, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Cryptographic Protocols, Network Protocols, Cryptography, Security Awareness, Generative AI Agents, Server Side, Web Applications, Machine Learning Algorithms
★ 4.6 (18) · Intermediate · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Continuous Monitoring, Incident Response, Cyber Attacks, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Application Security, Computer Security Incident Management, Security Management, Cyber Security Strategy, Information Systems Security, Secure Coding, Cyber Security Policies, Cyber Security Assessment, Threat Management, Threat Detection, Information Assurance, Network Security
★ 4.7 (665) · Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cloud Management, Cloud Computing Architecture, Identity and Access Management, Cloud Infrastructure, AWS Identity and Access Management (IAM), Virtualization and Virtual Machines, Virtual Machines, Cloud Security, Virtualization, Cloud Deployment, Cloud Platforms, Authorization (Computing), Infrastructure As A Service (IaaS), Cloud Services, Role-Based Access Control (RBAC), User Provisioning, Authentications, Security Awareness, Cyber Threat Intelligence, Cyber Security Strategy
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Continuous Monitoring, Security Management, Security Strategy, Risk Management Framework, Cyber Risk, Threat Management, Cyber Security Strategy, Cloud Security, Computer Security Incident Management, Security Controls, Cyber Threat Intelligence, Incident Response, Risk Analysis, Cloud Standards, Scalability, Interoperability
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Deployment, Multi-Cloud, Cloud Security, AI Security, MLOps (Machine Learning Operations), DevSecOps, Cloud Management, Security Architecture Review, Microservices, Site Reliability Engineering, Security Controls, CI/CD, System Monitoring, Infrastructure as Code (IaC), Compliance Management, Automation, Kubernetes, Docker (Software), Incident Management, Performance Analysis
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Application Security, Angular, OAuth, Test Driven Development (TDD), Web Components, Cryptography, Data Validation, Unit Testing, Vue.JS, Development Testing, Data Security, Authentications, Encryption, Authorization (Computing), HTML and CSS, Hypertext Markup Language (HTML), Web Applications, Javascript, Security Strategy, Computer Programming
★ 4.3 (102) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Security Controls, Security Awareness, Change Control, Computer Security Awareness Training, Cybersecurity, Security Management, Information Assurance, Data Security, Safety and Security, Cyber Security Policies, Data Ethics, Human Factors (Security), Cyber Security Assessment, Data Integrity, Authorization (Computing), Identity and Access Management
★ 4.7 (111) · Beginner · Course · 1 - 4 Weeks