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: Linux Administration, Linux, Linux Servers, Ubuntu, Operating System Administration, Red Hat Enterprise Linux, Unix, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Network Administration, Software Installation, Package and Software Management, Authentications, Open Source Technology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Incident Management, IT Security Architecture, Security Architecture Review, Identity and Access Management, Continuous Monitoring, Network Security, Security Management, Security Awareness, Information Technology Architecture, Security Information and Event Management (SIEM), Application Security, Disaster Recovery, Security Controls, Cloud Security, Computer Security Awareness Training, Infrastructure Security, Threat Modeling, Cyber Security Policies, User Provisioning
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Dependency Analysis, Vulnerability Assessments, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Risk Management, Security Strategy, Risk Analysis, Security Management, Business Risk Management, Risk Mitigation, Security Controls, Threat Management, Cyber Security Strategy, Vulnerability Management, IT Management, Asset Protection, Information Assurance, Asset Management, Security Engineering, Auditing, Business Priorities, Continuous Improvement Process
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Blockchain, Business Continuity Planning, Business Continuity, Cryptography, Disaster Recovery, Data Management, Digital Assets, Vulnerability Assessments, Regulatory Compliance, Enterprise Security, Threat Modeling, Asset Protection, Vulnerability Management, Regulation and Legal Compliance, Data Security, Law, Regulation, and Compliance, Application Security, Application Frameworks, Cybersecurity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Architecture, Network Security, Network Planning And Design, Virtual Networking, General Networking, Network Infrastructure, Network Troubleshooting, Cloud Infrastructure, Network Model, Google Cloud Platform, Network Analysis, Network Routing, Load Balancing, Firewall, Hybrid Cloud Computing, Scalability, Interactive Data Visualization
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Data Security, Security Testing, Threat Detection, Cyber Threat Intelligence, Cyber Attacks, Cyber Risk, Cyber Security Strategy, AI Integrations, Intrusion Detection and Prevention, Cyber Threat Hunting, Data Management, Cybersecurity, Cyber Governance, Artificial Intelligence and Machine Learning (AI/ML), Security Management, Security Awareness, Security Strategy, AI Product Strategy, Security Software, Generative AI
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Threat Modeling, Remote Access Systems, Vulnerability Assessments, Threat Detection, Security Strategy, Cyber Security Assessment, Cybersecurity, Security Software, Security Management, Infrastructure Security, Telecommuting, Cyber Risk, Cyber Attacks, Security Awareness, Security Controls, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Management, Incident Response, Vulnerability Assessments, Computer Security Incident Management, Threat Management, IT Management, Vulnerability Management, Security Strategy, Cyber Governance, Risk Management Framework, Cyber Security Strategy, Cyber Security Policies, Information Assurance, Security Controls, Cyber Risk, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

The Hong Kong University of Science and Technology
Skills you'll gain: Financial Regulation, Financial Regulations, Bank Regulations, FinTech, Financial Services, Financial Industry Regulatory Authorities, Law, Regulation, and Compliance, Regulatory Compliance, Mobile Banking, Regulatory Requirements, Financial Controls, Fraud detection, Loss Prevention, Data Security, Cybersecurity, Human Factors (Security), Insurance, Blockchain, Information Privacy, Security Controls
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, AI Security, Cloud Deployment, Google Cloud Platform, Cloud Security, Generative AI, Vulnerability Assessments, Security Controls, Vulnerability Management, Security Engineering, Threat Detection
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Disaster Recovery, Secure Coding, Database Management, Relational Databases, Database Management Systems, Query Languages, Security Controls, Data Access, Data Security, Application Security, Role-Based Access Control (RBAC), Threat Management, Threat Detection, Encryption
Intermediate · Course · 1 - 4 Weeks