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: Software Testing, Open Web Application Security Project (OWASP), Business Logic, Secure Coding, Cryptography, Cybersecurity, Test Case, Identity and Access Management, Authentications, Vulnerability Assessments, Threat Modeling, Encryption, Data Validation, Network Protocols, Authorization (Computing), Web Applications
Intermediate · 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, Personally Identifiable Information, Linux, Linux Administration, Infrastructure Security, Network Security, Threat Management, Event Monitoring, Enterprise Risk Management (ERM), Business Risk Management, Security Information and Event Management (SIEM), Security Strategy
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: vSphere Networking and Storage, VMware vSAN, vCenter Server, Virtual Networking, iSCSI Configuration, Virtual Machines, Network Administration, Servers, Data Storage Technologies, Network Security, Data Storage, Network Switches, Role-Based Access Control (RBAC)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Deployment, Multi-Cloud, Cloud Security, AI Security, MLOps (Machine Learning Operations), DevSecOps, Cloud Management, Investigation, 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

University of Colorado System
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Risk Management Framework, Infrastructure Security, Cyber Attacks, Cyber Risk, Cyber Security Policies, Public Safety and National Security, Cyber Security Assessment, Cyber Operations, Cyber Governance, Security Management, NIST 800-53, Incident Response, Security Strategy, Technology Roadmaps, Network Infrastructure, Technology Solutions, Transportation Operations, Legal Risk
Beginner · Specialization · 3 - 6 Months

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

LearnKartS
Skills you'll gain: Cloud Computing Architecture, Identity and Access Management, Cloud Infrastructure, AWS Identity and Access Management (IAM), Virtual Machines, Cloud Security, Virtualization, Cloud Deployment, Cloud Platforms, Authorization (Computing), Role-Based Access Control (RBAC), User Provisioning, Authentications, Zero Trust Network Access, Multi-Factor Authentication, Threat Detection, Security Awareness, Cyber Threat Intelligence, Scalability, Cyber Security Strategy
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Apache, Network Monitoring, Data Import/Export, Web Servers, Virtual Networking, Network Analysis
Intermediate · Project · Less Than 2 Hours

Macquarie University
Skills you'll gain: Incident Response, Cyber Governance, Cyber Risk, Incident Management, Law, Regulation, and Compliance, Security Strategy, Computer Security Incident Management, Security Awareness, Culture Transformation, Cyber Attacks, Mobile Security, Cyber Security Strategy, Security Management, Disaster Recovery, Enterprise Security, Cyber Security Policies, Communication, Cybersecurity, Cyber Security Assessment, Cyber Operations
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Penetration Testing, Security Testing, Cybersecurity, Network Security, Brute-force attacks, TCP/IP, Network Monitoring, Vulnerability Assessments, Servers, Network Analysis, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Wireless Networks, Network Administration, Virtual Machines, Virtualization, Network Troubleshooting, Network Security, Cloud Computing, Computer Networking, Virtual Private Networks (VPN), Mobile Security, Firewall, Hardware Troubleshooting, Android (Operating System), Apple iOS, Systems Administration, Multi-Factor Authentication, Peripheral Devices
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Generative Adversarial Networks (GANs), PyTorch (Machine Learning Library), Deep Learning, Convolutional Neural Networks, Image Analysis, Python Programming
Intermediate · Guided Project · Less Than 2 Hours