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: Security Assertion Markup Language (SAML), Spring Framework, OAuth, Authorization (Computing), Authentications, Single Sign-On (SSO), Java Programming, Role-Based Access Control (RBAC), Spring Boot, Secure Coding, Identity and Access Management, Data Persistence, Apache Tomcat, Public Key Infrastructure, Databases
Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Internet Of Things, Security Engineering, Information Systems Security, Wireless Networks, Infrastructure Security, General Networking, Cybersecurity, IBM Cloud, Cloud Platforms, Cryptography, Telecommunications, Network Protocols, Market Opportunities, Automation, Emerging Technologies, Embedded Systems, Cloud Deployment, Software-Defined Networking, Market Intelligence
★ 4.7 (630) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Malware Protection, Computer Security Awareness Training, Cybersecurity, Security Awareness, Cyber Attacks, Data Loss Prevention, Data Security, Network Security, Human Factors (Security), Threat Detection, Security Controls, Email Security, Wireless Networks
Beginner · 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: Network Architecture, Network Security, Network Planning And Design, Virtual Networking, Network Troubleshooting, Computer Networking, General Networking, Network Infrastructure, Cloud Infrastructure, Network Monitoring, Network Model, IT Security Architecture, Google Cloud Platform, Network Routing, Firewall, Public Cloud, Load Balancing, Scalability
Intermediate · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Security Management, Security Strategy, Disaster Recovery, Cyber Governance, Cybersecurity, Information Systems Security, Risk Management Framework, Risk Management, Security Requirements Analysis, Data Security, Cyber Security Policies, Cyber Risk, Law, Regulation, and Compliance, Data Management, Data Ethics, Record Keeping, Network Security, Information Privacy
Beginner · Course · 1 - 4 Weeks

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
★ 4.6 (920) · Intermediate · Course · 1 - 3 Months

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

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: 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

Macquarie University
Skills you'll gain: Mobile Security, Digital Forensics, Criminal Investigation and Forensics, Cyber Threat Intelligence, Cyber Security Strategy, Investigation, Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Mobile Development, Cyber Security Policies, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Threat Modeling, Data Security, Cyber Governance, Machine Learning Methods, Application Security, iOS Development, Digital Analysis
★ 4.5 (57) · Intermediate · Specialization · 3 - 6 Months