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.

Dartmouth College
Skills you'll gain: Bayesian Network, Artificial Neural Networks, Convolutional Neural Networks, Deep Learning, Tensorflow, Machine Learning, Model Evaluation, Network Architecture, Algorithms, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Threat Modeling, Digital Forensics, Threat Detection, Endpoint Detection and Response, Computer Security Incident Management, Microsoft Windows, Exploitation techniques, Threat Management, Exploit development, Cyber Security Strategy, Cyber Attacks, Cybersecurity, Cyber Security Policies, Anomaly Detection, Cyber Risk, Information Technology
Beginner · Course · 3 - 6 Months

Skills you'll gain: Digital Forensics, Incident Response, Computer Security Incident Management, Intrusion Detection and Prevention, Threat Detection, Cyber Threat Hunting, Cybersecurity, Security Management, Endpoint Detection and Response, Event Monitoring, Network Monitoring, Data Integrity, Technical Communication
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Internet Of Things, Natural Language Processing, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Automation, Network Performance Management, Network Monitoring, Data Pipelines, Generative AI Agents, Generative AI, Wireless Networks, Artificial Intelligence, Emerging Technologies, Network Architecture, Digital Communications, Computer Networking, Network Protocols, Responsible AI, Communication, System Design and Implementation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Active Directory, Windows Servers, User Accounts, Microsoft Windows, Dynamic Host Configuration Protocol (DHCP), Firewall, Server Administration, Group Policy, Windows PowerShell, Operating System Administration, Systems Administration, Virtualization, Virtual Machines, Network Administration, Network Security, File Systems
Intermediate · Course · 1 - 3 Months
Starweaver
Skills you'll gain: Digital Forensics, Investigation, Cybersecurity, Data Integrity, Criminal Investigation and Forensics, Data Ethics, Computer Security, Scenario Testing, Data Security, Technical Communication, Incident Response, Writing, Technical Documentation, File Systems, Artifactory, Microsoft Windows, Linux Commands
Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Network Security, Computer Hardware, Computer Systems, TCP/IP, Information Technology, General Networking, Computer Literacy, Network Protocols, Operating Systems, Computer Networking, Software Systems, File Systems
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Network Troubleshooting, Hybrid Cloud Computing, Telecommunications, Collaboration, Dynamic Host Configuration Protocol (DHCP), Wide Area Networks, User Provisioning, Virtual Private Networks (VPN), Network Support, Cloud Deployment, Cloud-Based Integration, Firewall, Network Performance Management, Network Administration, Session Initiation Protocols, System Configuration, Network Monitoring, Identity and Access Management, Administration, Product Management
Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Virtual Private Networks (VPN), Cybersecurity, Computing Platforms, Multi-Factor Authentication, Authentications, Information Systems Security, Network Security, Technical Support and Services, Application Security, Data Security, Information Privacy, Servers, Cloud Computing, Network Administration, Encryption, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Administration, Software Installation, System Configuration, Servers, Virtual Machines
Intermediate · Course · 1 - 3 Months

IBM
Skills you'll gain: Cloud Computing Architecture, Technical Support, Cloud Services, Cloud Deployment, Generative AI, Hardware Troubleshooting, IT Service Management, Cloud Security, Cloud Infrastructure, Cybersecurity, Cloud Platforms, Cloud Computing, Professional Networking, Help Desk Support, Data Storage, Desktop Support, Peripheral Devices, Information Technology, Artificial Intelligence, Customer Service
Beginner · Professional Certificate · 3 - 6 Months

Google Cloud
Skills you'll gain: Firewall, Intrusion Detection and Prevention, Network Security, Virtual Networking, Cloud Security, Infrastructure Security, Threat Detection
Intermediate · Course · 1 - 3 Months