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.

Board Infinity
Skills you'll gain: Middleware, Node.JS, Model View Controller, Development Environment, Application Frameworks, Application Development, JavaScript Frameworks, Web Applications, Web Development Tools, Server Side, Network Routing, Service Oriented Architecture, Android Development
★ 3.6 (36) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Containerization, Node.JS, CI/CD, Kubernetes, MongoDB, Full-Stack Web Development, Back-End Web Development, JavaScript Frameworks, Application Deployment, Continuous Integration, Server Side, Microservices, Frontend Integration, NoSQL, API Design, Software Technical Review, Continuous Deployment, Web Development, Databases, Database Development
★ 4.6 (11) · Advanced · Course · 1 - 3 Months

Skills you'll gain: C and C++, Application Security, System Programming, Secure Coding, C++ (Programming Language), C (Programming Language), Debugging, Interoperability, Programming Principles, File I/O, Development Environment
★ 2.8 (6) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Secure Coding, Frontend Performance
Intermediate · Course · 1 - 3 Months

University of Arizona
Skills you'll gain: Integrated Marketing Communications, Media and Communications, Marketing Communications, Brand Strategy, Brand Marketing, Branding, Marketing, Brand Management, Marketing Strategies, Strategic Marketing, Marketing Effectiveness, Strategic Communication, Social Media Strategy, Content Marketing, Social Media Marketing, Direct Marketing, Product Marketing, Marketing Strategy and Techniques, Communication, Digital Marketing
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Cloud Services, Cloud Deployment, Infrastructure Architecture, Authorization (Computing), Software As A Service
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Virtualization, Virtualization and Virtual Machines, Virtual Machines, Data Storage, Virtual Networking, Data Storage Technologies, vSphere DRS & HA, Networking Hardware, Virtual Local Area Network (VLAN), Computing Platforms, Infrastructure Architecture, IT Infrastructure, Network Infrastructure, Capacity Management, Data Centers, Memory Management, Network Switches, Endpoint Security, Computer Hardware
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Data Ethics, Big Data, Cybersecurity, Data Security, Cryptography, Education Software and Technology, Information Privacy, Encryption, Digital pedagogy, Data Sharing, AI Personalization, Computer Science, Information Technology, Web Applications, Web Servers, Machine Learning, Machine Learning Methods, Supervised Learning
★ 4.6 (10) · Beginner · Course · 1 - 3 Months

Radio y Televisión Española
Skills you'll gain: Image Analysis, Research, digital literacy, Fraud detection, Social Network Analysis, Investigation, Journalism, Verification And Validation
★ 4.8 (10) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Design, Object Oriented Programming (OOP), File I/O, Program Development, Software Development, Automation, Data Structures, Code Reusability, Maintainability, File Management, Python Programming, Scalability, Scripting Languages, Data Persistence, JSON, Problem Solving
★ 5 (15) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Performance Metric, Workflow Management, Issue Tracking, Performance Analysis, User Feedback, Automation, Performance Measurement, Project Management Software, Accountability Frameworks, Performance Improvement, Operational Efficiency, Service Improvement, Process Improvement, Data-Driven Decision-Making, Prioritization, Systems Integration
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Key Performance Indicators (KPIs), Dashboard, Performance Measurement, Data-Driven Marketing, Business Intelligence, Performance Metric, Business Metrics, Performance Analysis, Email Marketing, Performance Reporting, Stakeholder Communications, Marketing Analytics, Data-Driven Decision-Making, Data Visualization, Campaign Management, Presentations, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks