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.

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
★ 4.7 (50) · 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: 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, Role-Based Access Control (RBAC), Threat Management, Threat Detection
Intermediate · 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
★ 4.5 (31) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operations Research, Supply Chain Systems, Supply Chain, Supply Chain Management, Supply Chain Planning, Operational Analysis, Process Optimization, Model Optimization, Capacity Planning, Production Planning, Data Analysis, R Programming
★ 4.4 (14) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Computer Security Incident Management, Network Analysis, Anomaly Detection, Data Cleansing
★ 4.9 (35) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: AI Security, Security Information and Event Management (SIEM), DevSecOps, Role-Based Access Control (RBAC), Responsible AI, Data Security, Security Strategy, Cloud Deployment, Vulnerability Management, Vulnerability Scanning, Security Management, Continuous Monitoring, Cybersecurity, Cloud Security, Vulnerability Assessments, Threat Modeling, Threat Detection, Incident Response, Security Software, Operations
★ 4.3 (26) · Intermediate · Specialization · 3 - 6 Months

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

Skills you'll gain: Azure Active Directory, Endpoint Security
Intermediate · 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

AI CERTs
Skills you'll gain: Cyber Security Strategy, Fraud detection, Security Awareness, Operational Risk, Cyber Governance, Digital Assets, Asset Protection, Cyber Risk, Financial Controls, Computer Security Awareness Training, Cryptographic Protocols, Risk Management Framework, Loss Prevention, Payment Systems
Beginner · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Azure Active Directory, Cloud Security, Cyber Attacks, Security Controls, Multi-Factor Authentication, Data Security, Endpoint Detection and Response, Cloud Management, Identity and Access Management, Threat Management, Cloud Computing Architecture, Infrastructure Security, Software As A Service, Threat Detection, Hybrid Cloud Computing, Authentications
Intermediate · Course · 1 - 4 Weeks