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.

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Network Analysis, Social Sciences, Sociology, Social Impact, Systems Thinking, Simulations, Culture, Graph Theory, Complex Problem Solving, Innovation
Beginner · Course · 1 - 3 Months

Icahn School of Medicine at Mount Sinai
Skills you'll gain: Bioinformatics, Unsupervised Learning, Biology, Machine Learning Algorithms, Data Processing, Data Integration, Network Model, Life Sciences, Statistical Methods, Open Source Technology, Scientific Visualization, General Science and Research, Cell Biology, Unix Commands, Laboratory Research
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Cyber Attacks, Data Security, Authentications, Authorization (Computing), Application Security, Security Controls, Personally Identifiable Information, Security Awareness, Endpoint Security, Identity and Access Management, Information Privacy, Cryptography, Data Loss Prevention, Malware Protection, Hardening, Encryption, Vulnerability Assessments, Multi-Factor Authentication, Data Integrity
Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: AI Security, Responsible AI, Incident Response, Computer Security Incident Management, Data Ethics, Generative AI, LLM Application, Large Language Modeling, Generative Model Architectures, Prompt Patterns, Threat Modeling, Security Testing, Cybersecurity, IT Security Architecture, Artificial Intelligence, Machine Learning, Security Management, MLOps (Machine Learning Operations), Agentic systems, Ethical Standards And Conduct
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Routing Protocols, Virtual Networking, Network Routing, Network Architecture, Hybrid Cloud Computing, Network Planning And Design, Amazon Web Services, Virtual Private Networks (VPN), Information Technology Architecture, General Networking, Network Infrastructure, Network Performance Management, Network Security, Cloud Infrastructure, Cloud Computing, Network Analysis, Operations Management
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Languages and XML, IT Automation, Extensible Markup Language (XML), API Testing, Network Protocols, YAML, Network Monitoring, Automation, Network Engineering, Scripting Languages, Python Programming, Real Time Data
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Information Assurance, Data Governance, Information Management, Data Storage
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Devops Tools, Development Environment, Software Development Tools, Software Development Methodologies, CI/CD, DevOps, IT Automation, Continuous Deployment, Version Control, Continuous Integration, Network Engineering, Program Development, Docker (Software), Network Infrastructure, Containerization, Software Development, Virtual Environment, Git (Version Control System), Waterfall Methodology, Software Design
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Application Security, Secure Coding, Serverless Computing, Cryptography, Risk Management Framework, Cloud Security, Threat Management, Infrastructure Security, Exploitation techniques, Package and Software Management, Node.JS, Web Applications, Javascript, Vulnerability Management, Cloud Services, Cloud Platforms, Web Development, Identity and Access Management, Dependency Analysis
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Application Security, Data Security, Information Systems Security, Internet Of Things, Threat Modeling, Cybersecurity, Cloud Security, Security Engineering, Cryptography, Secure Coding, Network Security, Cyber Attacks, Mobile Security, Vulnerability, Risk Management Framework, Threat Management, Encryption, Cloud Services, Web Applications, Cloud Platforms
Mixed · 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, Network Security, IT Security Architecture, 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
University of Michigan
Skills you'll gain: Network Analysis, Social Network Analysis, Network Model, Graph Theory, Data Analysis, Predictive Analytics, Python Programming, Algorithms
Intermediate · Course · 1 - 4 Weeks