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.

Logical Operations
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Protocols, Network Administration, TCP/IP, Wireless Networks, General Networking, Network Architecture, Network Infrastructure, System Configuration, Computer Networking
Mixed · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Land Management, Environmental Science, Sustainable Systems, Sustainable Development, Natural Resource Management, Environmental Engineering and Restoration, Environmental Resource Management, Environment and Resource Management, Philanthropy, Social Studies, Climate Change Mitigation, Finance
★ 4.9 (180) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Tidyverse (R Package), Rmarkdown, R Programming, Ggplot2, R (Software), Plot (Graphics), Data Visualization, Data Import/Export, Statistical Visualization, Data Wrangling, Statistical Reporting, Data Visualization Software, Data Presentation, Data Analysis, Data Science, Data Manipulation, Statistical Analysis, Relational Databases, Data Cleansing, Communication
★ 4.1 (56) · Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Responsible AI, Agentic systems, Data Ethics, Machine Learning Algorithms, Model Training, Agentic Workflows, Decision Intelligence, Data Governance, AI Enablement, Health Systems, Health Informatics, Artificial Intelligence, Digital Transformation, Healthcare Industry Knowledge, Human Factors (Security), Generative AI Agents, Health Technology, Health Information Management, Information Technology, Information Systems
★ 4.6 (37) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Responsible AI, Social Media Analytics, Graph Theory, Machine Learning Methods, R (Software), Machine Learning, Machine Learning Software, Model Training, Machine Learning Algorithms, Model Optimization, Model Evaluation, Social Sciences, Statistical Analysis, Amazon Web Services, Tensorflow, Data Ethics, Large Language Modeling, Applied Machine Learning
★ 4.5 (19) · Intermediate · Specialization · 3 - 6 Months

ESSEC Business School
Skills you'll gain: Case Studies, Digital Transformation, Advanced Analytics, Business Analytics, Analytics, Business Analysis, Predictive Analytics, Data Analysis, Analytical Skills, Health Informatics, Value Propositions, Consulting, Business Transformation, Data Strategy
★ 3.7 (210) · Mixed · Course · 1 - 4 Weeks

Saïd Business School, University of Oxford
Skills you'll gain: Machine Learning Methods, Financial Services, Artificial Intelligence, Responsible AI, FinTech, Financial Data, Banking Services, Decision Intelligence, Financial Regulation, Banking, Fraud detection, Machine Learning, Data Ethics, Natural Language Processing, AI Personalization, Deep Learning, Credit Risk, Case Studies, Algorithms, Data Management
★ 4.7 (90) · Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Advocacy, Newsletters, Risk Management, Lobbying, Talent Management, Governance, Non-Profit Accounting, Event Planning, Fundraising, Risk Management Framework, Fundraising and Crowdsourcing, Event Management, Leadership Development, Risk Mitigation, Diversity and Inclusion, Public Relations, Grant Writing, Customer Relationship Management, Strategic Leadership, Leadership
Beginner · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Internet Of Things, Advanced Analytics, Big Data, Data Management, Wireless Networks, Predictive Analytics, Applied Machine Learning, Analytics, Water Sustainability, Data-Driven Decision-Making, Sustainable Systems, Environmental Monitoring, Geospatial Information and Technology, Telecommunications, Sustainable Technologies, Machine Controls, Real Time Data, Automation, Data Analysis, Data Collection
★ 4.6 (340) · Beginner · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Social Media Strategy, Social Media Marketing, Social Media Campaigns, Digital Media Strategy, Content Marketing, Communication Planning, Marketing Strategies, Social Media Analytics, Marketing Communications, Content Strategy, Strategic Communication, Campaign Planning, Campaign Management, Marketing, Customer Engagement, Communication Strategies
★ 4.5 (545) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Hardware Troubleshooting, Desktop Support, Computer Hardware, Digital Transformation, Network Troubleshooting, Technical Support, System Support, Help Desk Support, Technical Support and Services, Networking Hardware, Servers, Network Security, Network Infrastructure, Server Administration, Data Security, Hardware Architecture, System Configuration, IT Infrastructure, Peripheral Devices, Data Storage Technologies
★ 4.9 (21) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Graph Theory, Data Structures, Microsoft Copilot, .NET Framework, Algorithms, Back-End Web Development, Performance Tuning, Theoretical Computer Science, Scalability
★ 4.6 (44) · Beginner · Course · 1 - 3 Months