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.

Fortinet, Inc.
Skills you'll gain: Virtual Private Networks (VPN), Firewall, Network Routing, Intrusion Detection and Prevention, Authentications, Lightweight Directory Access Protocols, Network Security, Network Administration, Identity and Access Management, Security Controls, System Configuration, Network Monitoring, Enterprise Security
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Systems Development, Systems Development Life Cycle, Agile Methodology, Productivity Software, digital literacy, Network Security, Computer Hardware, Computer Systems, Data Security, Risk Management, System Design and Implementation, TCP/IP, Information Technology, Software Development Methodologies, Data Ethics, Cybersecurity, General Networking, Productivity, Safety and Security, Process Design
Beginner · Specialization · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Embedded Systems, Internet Of Things, Embedded Software, Network Protocols, Wireless Networks, Computer Hardware, Hardware Architecture, Network Architecture
Mixed · Course · 1 - 4 Weeks

Akamai Technologies, Inc.
Skills you'll gain: Routing Protocols, OSI Models, Remote Access Systems, Network Architecture, TCP/IP, General Networking, Network Protocols, Network Troubleshooting, Computer Networking, Networking Hardware, Network Administration, Network Security, Network Infrastructure, Network Model, Virtual Private Networks (VPN), Wireless Networks, Network Routers, Network Routing, Dynamic Host Configuration Protocol (DHCP), Intrusion Detection and Prevention
Beginner · Course · 1 - 3 Months

Skills you'll gain: Encryption, Cybersecurity, Cyber Attacks, Threat Management, Security Strategy, Authentications, Threat Detection, Network Security, Authorization (Computing), Cryptography, Data Security, Active Directory, Identity and Access Management, Firewall, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Reinforcement Learning, Responsible AI, Agentic systems, Artificial Intelligence, Machine Learning Methods, Distributed Computing, Simulations, Transfer Learning
Beginner · Course · 1 - 4 Weeks

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

Skills you'll gain: Security Information and Event Management (SIEM), Cloud Security, Cyber Security Policies, Microsoft Azure, Identity and Access Management, Cybersecurity, Cyber Threat Intelligence, Malware Protection, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Threat Management, Firewall, Endpoint Security, Threat Detection, Virtual Networking, Encryption, Event Management
Beginner · Course · 1 - 4 Weeks
Starweaver
Skills you'll gain: Endpoint Detection and Response, Threat Detection, MITRE ATT&CK Framework, Cyber Threat Hunting, Cyber Threat Intelligence, Intrusion Detection and Prevention, Threat Modeling, Security Information and Event Management (SIEM), Cyber Security Strategy, Cybersecurity, Malware Protection, Data Loss Prevention, Cyber Attacks, Data Security, Encryption, System Implementation, Open Source Technology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Media Planning, Social Media Marketing, Google Ads, Email Marketing, Social Media Strategy, Order Fulfillment, Social Media Management, Search Engine Optimization, Performance Measurement, Spreadsheet Software, A/B Testing, Digital Marketing, E-Commerce, Campaign Management, Loyalty Programs, Customer Retention, Marketing, Interviewing Skills, Applicant Tracking Systems
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months

Packt
Skills you'll gain: Amazon Web Services, Amazon CloudWatch, Containerization, Amazon S3, Docker (Software), Cloud Computing Architecture, Microservices, Cloud Computing, Amazon Redshift, Virtual Networking, AWS Identity and Access Management (IAM), Data Storage, Cloud Management, Analytics, System Monitoring, Data Storage Technologies, Cloud Hosting, Hybrid Cloud Computing, Private Cloud, Network Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Group Policy, Network Administration, TCP/IP, Application Deployment, Command-Line Interface
Intermediate · Course · 3 - 6 Months