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.

Northeastern University
Skills you'll gain: Open Web Application Security Project (OWASP), Security Information and Event Management (SIEM), Incident Response, Identity and Access Management, Incident Management, Cybersecurity, Event Monitoring, Network Security, Authentications, Application Security, Secure Coding, IT Security Architecture, Authorization (Computing), Cyber Security Assessment, Role-Based Access Control (RBAC), DevSecOps, Endpoint Security, Vulnerability Assessments, Infrastructure Security, Security Testing
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Android Development, Key Management, Exploit development, Android (Operating System), Secure Coding, Mobile Security, Data Security, Application Security, Data Loss Prevention, Network Security, Exploitation techniques, Memory Management, File Systems
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Secure Coding, Encryption, Network Security, Swift Programming, Mobile Security, Application Security, Data Persistence, Data Storage Technologies, Key Management, Data Security, File Systems, Cryptography
Mixed · Course · 1 - 4 Weeks

★ 4.7 (16) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Threat Management, Microsoft Azure, Cloud Security, Threat Detection, Key Management, Cloud Management, Security Controls, Data Security, Security Information and Event Management (SIEM), Data Structures, Continuous Monitoring, Event Monitoring, Query Languages
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Juniper Network Technologies, Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Border Gateway Protocol, Routing Protocols, Network Switches, Network Routing, Local Area Networks, Virtual Networking, Network Architecture, Network Administration, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, Network Troubleshooting, System Configuration, Scalability
Intermediate · Course · 1 - 3 Months

28DIGITAL
Skills you'll gain: Cybersecurity, Cyber Attacks, AI Security, Information Systems Security, Data Ethics, Cyber Security Policies, Deep Learning, Responsible AI, Intrusion Detection and Prevention, Artificial Intelligence and Machine Learning (AI/ML), Malware Protection, Natural Language Processing, Artificial Intelligence, Machine Learning Methods, Threat Detection, Anomaly Detection, Machine Learning, Machine Learning Algorithms, Model Training, Classification Algorithms
★ 3 (7) · Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Microsoft Azure, Cloud Hosting, Cloud Platforms, Cloud Deployment, Virtual Machines, Cloud Services, Cloud Infrastructure, Application Deployment, Infrastructure As A Service (IaaS), Cloud Storage, Computing Platforms, Azure DevOps, Hybrid Cloud Computing, Data Storage, Microsoft Development Tools, Application Servers, Data Storage Technologies, Model Deployment, Windows PowerShell, Command-Line Interface
★ 5 (15) · Beginner · Course · 1 - 3 Months

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

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, Database Systems, Google Cloud Platform, Operational Databases, Database Design, Databases, Database Architecture and Administration, MySQL, Database Management Systems, System Configuration, Data Migration, Cloud Deployment, Database Software, Security Controls, Data Import/Export, Data Storage, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

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