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.

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Open Web Application Security Project (OWASP), Cyber Security Assessment, Metasploit, Public Key Infrastructure, Exploit development, Exploitation techniques, Threat Modeling, Cybersecurity, Distributed Denial-Of-Service (DDoS) Attacks, Cryptography, Cyber Threat Intelligence, Mobile Security, Security Testing, Brute-force attacks, Vulnerability Scanning, Network Security, Operating Systems, Encryption
Intermediate · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: File Systems, Endpoint Security, Linux, Operating System Administration, Microsoft Windows, Windows PowerShell, Linux Administration, Windows Servers, Operating Systems, Linux Commands, Network Administration, Active Directory, System Monitoring, System Configuration, Network Security, Security Controls, Command-Line Interface, Malware Protection, Service Management
Mixed · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Content Marketing, Social Media Marketing, Social Media, Consumer Behaviour, Marketing Communications, Influencing, Persuasive Communication, Advertising, Marketing, Marketing Psychology, Brand Strategy, Storytelling
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Penetration Testing, Cyber Security Policies, Linux Commands, Cyber Security Assessment, Command-Line Interface, Cybersecurity, Cloud Computing, Linux, Risk Management Framework, Operating System Administration, Network Monitoring, Security Management, Operating Systems, Cyber Risk, Cloud Services, Threat Management, General Networking, Windows PowerShell, Cyber Governance, Unix Commands
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Recurrent Neural Networks (RNNs), Vision Transformer (ViT), PyTorch (Machine Learning Library), Keras (Neural Network Library), Large Language Modeling, Natural Language Processing, Embeddings, AI Personalization, Network Model, Network Architecture, Linear Algebra
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Terraform, Load Balancing, Infrastructure as Code (IaC), Cloud Computing, Managed Services, Solution Architecture, Virtual Machines, Network Infrastructure, Virtual Private Networks (VPN), Scalability
Intermediate · Course · 1 - 3 Months

Stanford University
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Network Model, Programming Principles, Social Network Analysis, Network Analysis, Theoretical Computer Science, Network Routing, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Network Troubleshooting, Software-Defined Networking, Network Monitoring, Threat Modeling, Virtual Networking, TCP/IP, Network Architecture, Computer Networking, Network Performance Management, Network Protocols, General Networking, Cybersecurity, Network Infrastructure, Local Area Networks, Network Analysis, OSI Models, Network Switches
Build toward a degree
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Flutter (Software), Cross Platform Development, Mobile Development, Cloud Development, Google Cloud Platform, User Interface (UI), Development Environment, Package and Software Management, Web Development, Network Security
Beginner · Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: Supervised Learning, Bayesian Network, Logistic Regression, Artificial Neural Networks, Machine Learning Methods, Statistical Modeling, Predictive Modeling, Model Evaluation, Statistical Machine Learning, Probability & Statistics, Bayesian Statistics, Deep Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Machine Learning Algorithms, Statistical Methods, Artificial Intelligence, Regression Analysis, Classification Algorithms, Statistical Inference
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Prompt Patterns, ChatGPT, Generative AI, Interactive Data Visualization, Business Intelligence, Data Presentation, Infographics, Data Visualization, Dashboard, Data Storytelling, Prototyping, Data Ethics, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, AI Workflows, Deep Learning, SQL, Data Analysis, Machine Learning
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploit development, Network Security, Vulnerability, Cybersecurity, Vulnerability Assessments, Information Systems Security, Data Persistence, Virtual Machines
Intermediate · Course · 1 - 3 Months