Internet Security courses can help you learn about network security protocols, encryption techniques, and threat detection methods. You can build skills in risk assessment, incident response, and implementing security policies. Many courses introduce tools like firewalls, intrusion detection systems, and antivirus software, demonstrating how these tools are used to protect sensitive data and maintain system integrity.

University of Minnesota
Skills you'll gain: Test Automation, Regression Testing, Software Testing, Software Development Tools, Test Tools, Computer Programming Tools, White-Box Testing, Code Coverage, Security Testing, Verification And Validation, Test Case, Test Data, Automation, Functional Requirement, Application Security, Vulnerability Scanning, Continuous Monitoring
★ 4.2 (87) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux, Package and Software Management, Linux Administration, Red Hat Enterprise Linux, Linux Commands, User Accounts, Operating System Administration, User Provisioning, OS Process Management, Bash (Scripting Language), Command-Line Interface, File Management, Unix Shell, Shell Script, Identity and Access Management, File Systems, System Monitoring, System Support, Network Administration, General Networking
★ 4.8 (108) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Marketing, Social Media Content, Search Engine Optimization, Web Analytics and SEO, Social Media Marketing, Brand Marketing, Brand Awareness, Digital Brand Strategy, Digital Marketing Tools, Branding, Digital Marketing, Marketing Design, Web Presence, Content Management Systems, Brand Management, Newsletters, Marketing Materials, Web Design and Development, Video Production
★ 4.6 (377) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Business Analysis, Business Analysis Tools, Business Process Modeling, Process Optimization, Requirements Management, Business Systems Analysis, Business Requirements, Process Modeling, Process Improvement and Optimization, Process Analysis, Data Modeling, Stakeholder Analysis, Requirements Elicitation, Agile Methodology, Requirements Analysis, Stakeholder Management, Business Process, Process Improvement, User Story, Stakeholder Engagement
★ 4.6 (71) · Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Infectious Diseases, Epidemiology, Food and Beverage, Nutrition and Diet, Food Safety and Sanitation, Infection Control, Public Health and Disease Prevention, Public Health, Physiology, Preventative Care, Sustainable Systems, Immunology, Microbiology, Caregiving, Environment and Resource Management
★ 4.8 (631) · Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Threat Detection, Cyber Security Strategy, System Monitoring, Cybersecurity, Cyber Operations, Continuous Monitoring, Network Security, Network Monitoring, Python Programming, Scripting, Scripting Languages
★ 4.5 (86) · Intermediate · Course · 1 - 4 Weeks

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Artificial Intelligence, Performance Analysis, Automation, Personalized Service, Digital Transformation, Augmented and Virtual Reality (AR/VR), Technology Strategies, Innovation, Internet Of Things, Machine Learning, Big Data, Ethical Standards And Conduct, Deep Learning, Analytical Skills, Predictive Analytics, Health Technology, Data Analysis, Natural Language Processing, User Experience, Data Security
★ 4.8 (22) · Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Microsoft Power Platform, Power Platform Architecture & Technical Design, No-Code Development, Data Integration, Data Store, Data Access, Database Management Systems, Application Development, Case Studies, Business Solutions, Data Security, Value Propositions
★ 4.5 (195) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, AI Integrations, Agentic Workflows, Responsible AI, AI Orchestration, Authorization (Computing), JSON, Agentic systems, Context Management, Requirements Elicitation
★ 4.7 (53) · Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Data-Driven Decision-Making, Business Analytics, Operational Efficiency, Peer Review, Marketing Strategies, Data Analysis, Marketing Effectiveness, Data Strategy, Performance Measurement, Operations, Strategic Decision-Making, Business Strategy, Analysis, People Analytics, Business Metrics, Online Advertising, Digital Advertising, Presentations, Problem Management, Advertising
★ 4.5 (780) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: WordPress, Web Design, Web Analytics and SEO, Content Management Systems, Web Content, Frontend Performance, Cloud Hosting, Web Servers, Web Development, Security Controls, Content Management, Application Security, Computing Platforms, Software Installation, Role-Based Access Control (RBAC), User Accounts
★ 4.3 (36) · Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Cucumber (Software), Gherkin (Scripting Language), Software Testing, Testability, Test Case, White-Box Testing, Behavior-Driven Development, Code Coverage, Test Engineering, Functional Testing, Test Automation, JUnit, Requirements Analysis, Java Programming
★ 3.8 (117) · Intermediate · Course · 1 - 4 Weeks