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 Studies, Social Impact, Systems Thinking, Simulations, Culture, Graph Theory, Complex Problem Solving, Innovation
Beginner · Course · 1 - 3 Months

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

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

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Infrastructure, Google Cloud Platform, Prompt Engineering, Kubernetes, Application Deployment, Network Monitoring, Prompt Engineering Tools, Containerization, Infrastructure As A Service (IaaS), Cloud Deployment, Infrastructure Architecture, Cloud Computing Architecture, Virtual Networking, Cloud Computing, Network Architecture, Virtual Private Networks (VPN), Site Reliability Engineering, Infrastructure as Code (IaC), Cloud Security
Intermediate · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Incident Response, Disaster Recovery, Incident Management, Security Management, Cyber Operations, Business Continuity Planning, Safety and Security, Change Control, Threat Management, Information Technology Operations, Security Information and Event Management (SIEM), Patch Management, Security Controls, Cybersecurity, Threat Detection, Intrusion Detection and Prevention, Configuration Management, Continuous Monitoring, Vulnerability Management, Digital Forensics
Intermediate · Course · 1 - 4 Weeks

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

University of Colorado Boulder
Skills you'll gain: Network Analysis, Social Network Analysis, Marketing Analytics, Social Media Analytics, Scientific Visualization, Statistical Methods, Text Mining, Data Structures, JSON, Natural Language Processing, Data Processing, Python Programming, Feature Engineering
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Information Privacy, Data Security, Security Testing, Threat Detection, Responsible AI, Data Governance, Cyber Threat Intelligence, Data Management, Cyber Attacks, Cloud Security, Cyber Security Strategy, Cybersecurity, Data Loss Prevention, Data Integrity, Security Management, Security Controls, Security Awareness, Cyber Operations, Artificial Intelligence and Machine Learning (AI/ML), Data Science
Beginner · Specialization · 3 - 6 Months

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

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Encryption, Information Systems Security, Threat Modeling, Cybersecurity, Cyber Attacks, Computer Security Incident Management, Threat Management, Application Security, Data Security, Computer Security, Security Management, Network Security, Incident Response, Data Encryption Standard, Cyber Security Policies, Cryptography, Intrusion Detection and Prevention, Security Controls, Data Integrity, Authentications
Build toward a degree
Intermediate · Course · 1 - 3 Months