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.

Starweaver
Skills you'll gain: Stakeholder Engagement, Business Analysis, Business Analysis Tools, Project Scoping, Organizational Change, Stakeholder Communications, Analysis, Requirements Analysis, Stakeholder Analysis, Requirements Management, Change Management, Performance Analysis, Project Performance, Performance Measurement, Business Development, Performance Metric, Quality Management
★ 4.6 (92) · Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Supervised Learning, Unsupervised Learning, Matplotlib, File I/O, Generative Adversarial Networks (GANs), Generative AI, NumPy, Object Oriented Programming (OOP), Model Training, Deep Learning, Image Analysis, Machine Learning Methods, Plot (Graphics), Object Oriented Design, Integrated Development Environments, Python Programming, Development Environment, Event-Driven Programming, Programming Principles, Computer Programming
★ 4 (80) · Beginner · Specialization · 3 - 6 Months

Imperial College London
Skills you'll gain: Epidemiology, Infection Control, Infectious Diseases, Mathematical Modeling, Public Health and Disease Prevention, Public Health, R Programming, Differential Equations
★ 4.9 (274) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, Threat Management, Cybersecurity, Threat Detection, Zero Trust Network Access, Cyber Attacks, Authentications, Application Security, Cyber Risk, Information Systems Security, Data Security, Encryption, Multi-Factor Authentication, Cryptography, Authorization (Computing), Identity and Access Management
★ 4.9 (8) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Dashboard, Conversion Funnel Analysis, Dashboard Creation, Data Storytelling, Marketing Budgets, Looker (Software), Customer Retention, SQL, Data Visualization, Marketing Analytics, Customer Insights, Tableau Software, Statistical Analysis, Predictive Analytics, Business Intelligence, Data Analysis, Time Series Analysis and Forecasting, Data-Driven Decision-Making, R Programming, Python Programming
Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Exploitation techniques, Application Security, Vulnerability Assessments, Extensible Markup Language (XML), Threat Detection
★ 4.8 (22) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, LLM Application, Agentic Workflows, Generative AI Agents, Agentic systems, Tool Calling, LangChain, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Memory Management, Model Evaluation, Context Management, Performance Testing, Development Testing, Debugging
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Spring Boot, API Testing, Spring Framework, Restful API, Application Programming Interface (API), API Design, Data Persistence, Web Applications, Application Frameworks, Development Testing, Software Testing, Web Services, Object-Relational Mapping, Application Security, Authentications, Authorization (Computing), Network Protocols
★ 4.2 (29) · Beginner · Course · 1 - 4 Weeks

Institute for the Future
Skills you'll gain: Forecasting, Systems Thinking, Responsible AI, Strategic Thinking, Creative Problem-Solving, Creative Thinking, Collaboration, Interviewing Skills, Emerging Technologies, Ideation, Strategic Planning, Innovation, Ethical Standards And Conduct, Empathy, Discussion Facilitation, Creativity
★ 4.8 (310) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, MITRE ATT&CK Framework, Security Testing, Payment Card Industry (PCI) Data Security Standards, NIST 800-53, Network Analysis, General Data Protection Regulation (GDPR), Cloud Computing
★ 4.8 (9) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Database Architecture and Administration, Data Maintenance, Operational Databases, Relational Databases, Capacity Planning, Database Management, Capacity Management, Data Integrity, Disaster Recovery, Data Validation, Performance Tuning, Problem Management, Demand Planning, Data Access, Forecasting, Resource Planning, Performance Analysis, Time Series Analysis and Forecasting
Advanced · Course · 1 - 4 Weeks

Banco Interamericano de Desarrollo
Skills you'll gain: Cybersecurity, Data Management, Infrastructure Security, Interoperability, Digital Transformation, Data Security, Data Governance, Public Administration, Governance, Case Studies, Public Key Infrastructure, digital literacy, Identity and Access Management, Service Design, Policy Analysis, Innovation, Strategic Planning
★ 4.7 (96) · Beginner · Course · 1 - 4 Weeks