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.

Board Infinity
Skills you'll gain: vSphere Networking and Storage, Virtual Networking, VMware ESX Servers, vSphere DRS & HA, Storage vMotion, vCenter Server, vCenter Server Management, Role-Based Access Control (RBAC), Virtual Local Area Network (VLAN), Virtual Machines, Performance Tuning, Virtualization and Virtual Machines, Authorization (Computing), Security Controls, Identity and Access Management, Network Performance Management, Network Troubleshooting, Infrastructure Security, Data Storage Technologies, Hardening
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Database Administration, Database Management, Relational Databases, SQL, Google Cloud Platform, Operational Databases, Database Design, Database Architecture and Administration, MySQL, Database Management Systems, System Configuration, Data Migration, Cloud Deployment, Database Software, Network Administration, Data Maintenance, Security Controls, Data Import/Export, Data Storage, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Role-Based Access Control (RBAC), Cloud Management, Continuous Deployment, Application Lifecycle Management, Capacity Management, Software Versioning, Virtual Networking, API Gateway, Identity and Access Management, Model Deployment, Security Controls, Large Language Modeling
Intermediate · Course · 3 - 6 Months

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Cryptographic Protocols, Cybersecurity, Email Security, Firewall, Data Integrity
Intermediate · Course · 1 - 3 Months

Erasmus University Rotterdam
Skills you'll gain: Security Management, Threat Management, Intelligence Collection and Analysis, International Relations, Public Safety and National Security, Security Awareness, Safety and Security, Risk Management, Cybersecurity, Cyber Threat Intelligence, Governance, Cultural Diversity, Economics, Policy, and Social Studies
Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: OSI Models, Network Security, Network Protocols, Network Architecture, Network Performance Management, Network Monitoring, Role-Based Access Control (RBAC), Network Troubleshooting, Network Administration, Computer Networking, TCP/IP, Network Planning And Design, Cybersecurity, Routing Protocols, Firewall, Network Routing, Network Analysis, IT Infrastructure, Cloud Computing, Automation
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Cloud Security, Application Security, Network Security, Computer Security, Cloud Computing, Cybersecurity, Security Controls, Infrastructure Security, Remote Access Systems, Cyber Attacks, Public Key Infrastructure, Hardening, Cryptography, Vulnerability Management, Private Cloud, Cryptographic Protocols, Vulnerability Assessments, Virtualization, Virtual Machines, Authentications
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Security Testing, Cyber Threat Intelligence, Cyber Risk, AI Integrations, Cyber Attacks, Cyber Security Assessment, Cybersecurity, IT Security Architecture, Security Controls, Threat Modeling, Security Strategy, Data Ethics, Security Engineering, Threat Detection, Data Governance, Data Security, Security Management, Information Privacy, Emerging Technologies
Beginner · Course · 1 - 3 Months

University of London
Skills you'll gain: Key Management, Security Management, Cyber Attacks, Cryptography, Cyber Security Policies, Cybersecurity, Encryption, Cyber Risk, ISO/IEC 27001, Threat Management, Risk Management Framework, Security Controls, Data Integrity
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Cyber Operations, Security Information and Event Management (SIEM), Threat Management, Threat Detection, Security Management, Cybersecurity, Information Technology Operations, Cyber Threat Intelligence, Cyber Attacks, Computer Security Incident Management, Security Controls, Data Analysis Software, Incident Response, Event Monitoring, IT Automation, Incident Management, Automation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cloud Computing Architecture, Cloud Security, Cloud Infrastructure, Cloud Computing, Cloud Standards, Cloud Applications, IT Security Architecture, Cloud Services, Cloud Technologies, Infrastructure Security, Cloud Management, Application Security, Data Security, Security Architecture Review, Cloud Storage, Security Controls, Data Loss Prevention, Computer Science, Risk Management Framework, Information Technology
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Responsible AI, AI Security, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Governance, Cyber Governance, Law, Regulation, and Compliance, Information Privacy, Regulation and Legal Compliance, Data Governance, Data Security, Machine Learning, Computer Security, Risk Management Framework
Beginner · Course · 1 - 3 Months