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 Colorado System
Skills you'll gain: TCP/IP, Network Protocols, Dynamic Host Configuration Protocol (DHCP), Network Security, OSI Models, Network Routing, Network Infrastructure, Software-Defined Networking, Local Area Networks, Virtualization
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Threat Management, Threat Modeling, Vulnerability Assessments, Incident Response, Computer Security Incident Management, Public Key Infrastructure, IT Security Architecture, Disaster Recovery, Vulnerability Management, Regulation and Legal Compliance, Threat Detection, Cyber Security Assessment, Risk Management, Compliance Management, Network Security, Infrastructure Security, Cloud Security, Hardening, Security Engineering, Software-Defined Networking
Beginner · Specialization · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Application Deployment, Prompt Engineering, Kubernetes, Containerization, Database Architecture and Administration, MySQL, Cloud Computing Architecture, Dataflow, PostgreSQL, Identity and Access Management, Cloud Storage, Data Migration, Cloud Management, Cloud Security, Cloud Applications, Operational Databases, Database Design, Database Management
Intermediate · Specialization · 3 - 6 Months

Universitat Politècnica de València
Skills you'll gain: Encryption, Malware Protection, Distributed Denial-Of-Service (DDoS) Attacks, Computer Security Awareness Training, Cybersecurity, Cyber Attacks, Identity and Access Management, Security Awareness, Data Security, Personally Identifiable Information, User Accounts, Information Systems Security, Human Factors (Security), Email Security, Cyber Risk, Information Privacy
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Salesforce, Salesforce Development, Systems Integration, Customer Relationship Management, Customer Relationship Management (CRM) Software, Data Integration, Contract Management, Responsible AI, Web Services, Business Reporting, Data Ethics, Artificial Intelligence, Application Programming Interface (API), Artificial Intelligence and Machine Learning (AI/ML), Security Controls, Customer Data Management, Analytics, Restful API, Sales Process, Data Security
Advanced · Specialization · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Intrusion Detection and Prevention, Incident Response, Threat Detection, Endpoint Detection and Response, Computer Security Incident Management, Cyber Threat Intelligence, Distributed Denial-Of-Service (DDoS) Attacks, Anomaly Detection, Cybersecurity, Cyber Security Strategy, Threat Management, Continuous Monitoring, System Monitoring, Virtual Machines, Network Security, Event Monitoring, Network Monitoring, Applied Machine Learning, Network Analysis, Data Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Data Visualization, Multimodal Prompts, Prompt Engineering, Data Presentation, Prompt Patterns, Graphing, Generative AI Agents, Generative AI, Data Synthesis, Timelines, LLM Application, Artificial Intelligence, Complex Problem Solving, Ideation, Business Correspondence, Report Writing, Solution Design, Critical Thinking, Document Management, Machine Learning
Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Cloud Security, Network Analysis, General Data Protection Regulation (GDPR), Information Privacy, Wireless Networks, Application Programming Interface (API), Security Controls
Intermediate · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Salesforce Development, Salesforce, CI/CD, Software Architecture, Solution Architecture, Systems Architecture, Code Review, DevOps, Software Technical Review, Integration Testing, Software Design, Software Design Patterns, Database Design, Debugging, Maintainability, Enterprise Architecture, IT Security Architecture, Security Controls, System Design and Implementation, Scalability
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Emerging Technologies, Internet Of Things, Network Security, Wireless Networks, Cybersecurity, Telecommunications, Technology Roadmaps, Technology Strategies, Automation, Real Time Data
Intermediate · Course · 1 - 4 Weeks
University of London
Skills you'll gain: Computer Science, Debugging, Development Environment, Computer Systems, Web Applications, Arithmetic, Computer Literacy, Javascript, Network Security, Computer Networking, Program Development, Computer Graphics, Web Design and Development, Cybersecurity, Computer Programming, Problem Management, Computational Thinking, General Mathematics, Systems Of Measurement, Problem Solving
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Social Media Management, Paid media, Social Media, Social Media Marketing, Marketing Analytics, Target Audience, Smart Goals, Social Media Strategy, Social Media Campaigns, Content Creation, Instagram, Advertising Campaigns, Marketing Effectiveness, Advertising, Content Performance Analysis, Marketing, Key Performance Indicators (KPIs), Marketing Budgets, Digital Marketing, Brand Management
Build toward a degree
Beginner · Professional Certificate · 3 - 6 Months