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.

Skills you'll gain: Medical Office Procedures, Calendar Management, Scheduling, Practice Management Software, Patient Flow, Medical Terminology, Corrective and Preventive Action (CAPA), Capacity Management, Data Quality, Anomaly Detection, Continuous Quality Improvement (CQI), Data Validation
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Criminal Investigation and Forensics, Public Safety and National Security, Social Justice, Legal Proceedings, Jury Trial, Political Sciences, Case Law, Neurology, Social Sciences, Policy Analysis, Appeals, Litigation and Civil Justice, Disabilities, Mental and Behavioral Health Specialties, Sociology, Mental Health Diseases and Disorders, Law, Regulation, and Compliance, Cultural Diversity, Investigation, Intelligence Collection and Analysis
★ 4.6 (197) · Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Salesforce, Administration, Data Management, Customer Relationship Management, Cloud Applications, Security Controls
★ 3.8 (70) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Network Protocols, Network Performance Management, Network Monitoring, Network Troubleshooting, Threat Detection, Network Analysis, Network Security
★ 4.7 (6) · Intermediate · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: Apache Maven, Build Tools, Software Development Tools, Version Control, Software Versioning, Software Configuration Management, Package and Software Management, Apache, Dependency Analysis, Change Control
★ 4.4 (10) · Beginner · Course · 1 - 4 Weeks
University of Pennsylvania
Skills you'll gain: Demography, Market Trend, Trend Analysis, International Relations, International Finance, Socioeconomics, Social Sciences, Cultural Diversity, Political Sciences, Financial Systems, World History, Economic Development, Economics, Business Economics, Consumer Behaviour, Financial Policy, Public Safety and National Security, Governance
★ 4.8 (926) · Mixed · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Statistical Machine Learning, Data Preprocessing, Model Evaluation, PyTorch (Machine Learning Library), Statistical Methods, Probability, Probability & Statistics, Sampling (Statistics), Logistic Regression, Deep Learning, Probability Distribution, Python Programming, Statistical Modeling, Supervised Learning, Machine Learning, Agentic systems, Artificial Intelligence, Model Optimization, Algorithms, AI literacy
★ 4.5 (57) · Intermediate · Specialization · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Requirements Analysis, Unified Modeling Language, Object Oriented Design, Functional Requirement, Data Modeling, Object Oriented Programming (OOP), Systems Development Life Cycle, System Requirements, Functional Specification, Diagram Design, Software Development, Software Engineering, Software Systems, Verification And Validation, Software Documentation, Model Evaluation, Project Planning, Project Management
★ 4.6 (392) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Agentic Workflows, Technical Communication, AI Enablement, Model Deployment, AI Workflows, Generative AI Agents, Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Decision Intelligence, AI Orchestration, Agentic systems, Artificial Intelligence, Cloud Computing, Deep Learning, Data Visualization, Python Programming, Machine Learning, Data Engineering, Anomaly Detection, Statistical Analysis
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: No-Code Development, Email Automation, Business Process Automation, Application Deployment, Automation, Business Process, Workflow Management, Google Workspace, Application Development, Application Performance Management, User Interface and User Experience (UI/UX) Design, Security Controls, Data Integration, Authorization (Computing), Application Design, Authentications, Cloud Applications, Scripting, Google Sheets, Application Lifecycle Management
★ 4.7 (196) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Systems Thinking, Epidemiology, Systems Analysis, Social Network Analysis, Simulations, Network Analysis, Public Health, Network Model, Public Health and Disease Prevention, Social Determinants Of Health, Behavioral Health, Economics
★ 4.6 (205) · Beginner · Course · 1 - 4 Weeks
University of Washington
Skills you'll gain: Unsupervised Learning, Supervised Learning, Data Science, Machine Learning Methods, Predictive Analytics, Applied Machine Learning, Analytics, Data Analysis, R Programming, Model Optimization, Statistical Methods, Decision Tree Learning, Statistical Inference, Statistical Analysis, Machine Learning, Statistics, Graph Theory, Classification Algorithms, Network Analysis, Big Data
★ 4.1 (323) · Mixed · Course · 1 - 4 Weeks