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 Boulder
Skills you'll gain: Internet Of Things, API Design, Amazon Web Services, Embedded Software, Cloud Computing Architecture, Application Programming Interface (API), Network Protocols, Microservices, Cloud Applications, Cloud Services, Communication Systems, Middleware, Cloud Platforms, Embedded Systems, Information Systems Security, Telecommunications, Cloud Technologies, Interoperability, Cybersecurity, Cloud-Based Integration
★ 4.5 (127) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Governance, Regulatory Compliance, Governance Risk Management and Compliance, Law, Regulation, and Compliance, Enterprise Security, Compliance Management, Regulatory Requirements, Regulation and Legal Compliance, Business Metrics, Accountability Frameworks, Key Performance Indicators (KPIs), Performance Metric, Ethical Standards And Conduct
★ 4.3 (7) · Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Internet Of Things, Telecommunications, Communication Systems, Distributed Computing, Wireless Networks, Digital Communications, General Networking, Local Area Networks, Network Model, Network Routing, Routing Protocols, Network Protocols, Global Positioning Systems
★ 4.7 (71) · Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Vibe coding, Web Development Tools, Generative AI Agents, Generative AI, Application Development, LLM Application, Google Cloud Platform, Software Development Tools, Cloud Development, Development Environment, Web Development, Web Applications, Secure Coding, Command-Line Interface, Application Security, Debugging
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Remote Access Systems, Linux, Restful API, Web Applications, Internet Of Things, Embedded Systems, Application Programming Interface (API), Robotics, Linux Commands, Command-Line Interface, Electronics, System Configuration, Python Programming, Electronic Components, Software Installation
★ 4.8 (56) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Technical Design, User Feedback, Technology Solutions, Technical Consulting, Solution Design, Solution Architecture, Solution Delivery, SAP Applications, Technical Communication, Requirements Analysis, Business Analysis, Agile Methodology, Business Requirements, Requirements Elicitation, Gap Analysis, Customer Engagement, Presentations, Prioritization, Communication
★ 4.7 (113) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Health Care, Clinical Assessment, Trauma Care, Psychosocial Assessments, Crisis Intervention, Health Disparities, Public Health and Disease Prevention, Health Equity, Patient-centered Care, Clinical Research Ethics, Community Health, Child Health, Healthcare Ethics, Health Technology, Cultural Diversity, Health Policy, Medical Privacy, Safety and Security
★ 4.8 (279) · Beginner · Course · 1 - 4 Weeks

Università di Napoli Federico II
Skills you'll gain: Market Liquidity, Bank Regulations, Derivatives, Securities Trading, Financial Regulation, Financial Market, Securities (Finance), FinTech, Financial Systems, Banking, Financial Trading, Financial Services, Market Dynamics, Financial Regulations, Financial Statement Analysis, Commercial Banking, Investments, Futures Exchange, Risk Modeling, Finance
★ 4.5 (11) · Intermediate · Specialization · 3 - 6 Months

28DIGITAL
★ 4.6 (115) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Overcoming Objections, Rapport Building, Sales, Sales Strategy, Negotiation, Regional Sales, Relationship Building, Selling Techniques, Communication, Communication Strategies, Intercultural Competence, Language Interpretation, Translation, and Studies, Business Research, Market Research, Empathy & Emotional Intelligence, Digital Communications, Goal Setting, Stakeholder Analysis, Research, Industrial and Organizational Psychology
Intermediate · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Reinforcement Learning, Machine Learning Methods, Machine Learning Algorithms, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Decision Intelligence, Markov Model, Deep Learning, Applied Machine Learning, Statistical Methods, Sampling (Statistics)
★ 4.4 (24) · Intermediate · Course · 1 - 3 Months

LearnQuest
Mixed · Course · 1 - 4 Weeks