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.

Amazon Web Services
Skills you'll gain: Network Architecture, Network Planning And Design, Virtual Networking, Amazon Web Services, Virtual Private Networks (VPN), Computer Networking, Network Security, Hybrid Cloud Computing, Cloud Computing Architecture, Network Infrastructure, General Networking, Cloud Infrastructure
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Local Area Network (VLAN), Routing Protocols, Virtual Networking, Network Switches, Network Administration, Network Routing, Network Troubleshooting, Open Shortest Path First (OSPF), Network Routers, TCP/IP, Computer Networking, Network Infrastructure, Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Performance Management, Networking Hardware, Network Security, Network Protocols, System Configuration
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: OSI Models, Network Security, Cloud Services, TCP/IP, Cloud Computing, Cloud Infrastructure, Software-Defined Networking, Network Architecture, Virtual Networking, Wide Area Networks, Cloud Engineering, Network Protocols, Cloud Computing Architecture, Cloud Platforms, Linux Administration, Network Troubleshooting, Linux, Kubernetes, Network Switches, Terraform
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

ISC2
Skills you'll gain: Security Controls, Governance, Cybersecurity, Information Assurance, Risk Management Framework, Cyber Security Policies, Cyber Governance, Data Ethics, Cyber Risk, Security Awareness
Beginner · Course · 1 - 3 Months

ISC2
Skills you'll gain: System Configuration, Configuration Management, Cyber Operations, Cybersecurity, Security Awareness, Computer Security Awareness Training, Data Security, Security Controls, Security Management, Event Monitoring, Encryption, Network Security, Continuous Monitoring, Network Administration, IT General Controls (ITGC), Cyber Security Policies, Information Technology Operations, System Monitoring, Patch Management, Cryptography
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Autoencoders, Recurrent Neural Networks (RNNs), Deep Learning, Artificial Neural Networks, Reinforcement Learning, Generative AI, Generative Adversarial Networks (GANs), Generative Model Architectures, Unsupervised Learning, Responsible AI, Data Ethics, Markov Model
Intermediate · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Developing Training Materials, Educational Materials, Classroom Management, Course Development, Teaching, Education and Training, Instructional and Curriculum Design, Interactive Learning, Instructional Design, Instructional Strategies, Innovation, Pedagogy, Student Engagement, Resource Utilization, Network Planning And Design, Infographics
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Cybersecurity, Cyber Attacks, Incident Response, Information Systems Security, Threat Modeling, Security Management, Computer Security Incident Management, IT Security Architecture, Network Security, Threat Management, Security Information and Event Management (SIEM), Cyber Threat Intelligence, Security Controls, Identity and Access Management, Cryptography, Threat Detection, Cyber Security Policies, Data Security, Computer Security, Risk Management
Intermediate · Course · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Data Visualization, Network Analysis, Relational Databases, Data Presentation, Data Visualization Software, Social Network Analysis, Infographics, Network Model, Database Theory, Query Languages, Data Analysis, Data Manipulation, Social Impact, Human Factors, Innovation
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Google Cloud Platform, Virtual Networking, Network Planning And Design, Prompt Engineering Tools, General Networking, Network Engineering, Network Architecture
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Generative Adversarial Networks (GANs), Anomaly Detection, AI Security, Fraud detection, Model Evaluation, Malware Protection, Cybersecurity, Threat Detection, Feature Engineering, Network Analysis, Cyber Attacks, Cyber Security Strategy, Classification Algorithms, Email Security, Network Security, Jupyter, Authentications, Machine Learning Methods, Machine Learning Algorithms, Artificial Intelligence
Intermediate · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Human Factors (Security), Usability, Human Computer Interaction, Authentications, Security Engineering, Usability Testing, Interaction Design, User Interface (UI), Human Factors, Information Privacy, Cybersecurity, Personally Identifiable Information, User Interface (UI) Design, Multi-Factor Authentication, User Centered Design, Design
Mixed · Course · 1 - 3 Months