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: Penetration Testing, Brute-force attacks, Cyber Security Assessment, Exploitation techniques, Cyber Security Policies, Hardening, Encryption, Network Security, Security Testing, Cybersecurity, Application Security, Security Strategy, Data Storage, Vulnerability Assessments, Wireless Networks, Data Ethics, Authentications, Cryptography, Data Security, Cyber Attacks
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Email Automation, Email Marketing, Lead Generation, Marketing Automation, Social Media, Social Media Marketing, Driving engagement, Automation
★ 4.4 (55) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Scenario Testing, Test Planning, Unit Testing, Functional Testing, Debugging, Hardware Troubleshooting
Beginner · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Pulmonology, Chronic Diseases, Respiratory Care, Primary Care, Pulmonary Function Testing, Respiration, Patient Evaluation, Rehabilitation, Psychosocial Assessments, Diagnostic Tests, Treatment Planning, Health Equity, Care Management, Patient Education and Support, Community Health, Patient-centered Care, Pharmacotherapy, Behavioral Health
★ 4.8 (9) · Mixed · Course · 1 - 3 Months

Skills you'll gain: ASP.NET, Model View Controller, .NET Framework, Order Management, Object-Relational Mapping, Application Deployment, User Accounts, User Provisioning, Order Management Systems, Database Management, Data Access, User Interface (UI) Design, Full-Stack Web Development, Cloud Deployment, Web Development, Authentications, Web Applications, User Interface and User Experience (UI/UX) Design, UI Components, Authorization (Computing)
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Performance Testing, Scalability, Data Architecture, Software Architecture, Distributed Computing, Performance Stress Testing, Predictive Modeling, Performance Tuning, Microservices, Big Data, Database Architecture and Administration, System Testing, Software Engineering, Data Store, Model Evaluation
★ 3.5 (31) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Technical Documentation, Solution Architecture, Model Deployment, Software Documentation, AI Integrations, MLOps (Machine Learning Operations), Artificial Intelligence and Machine Learning (AI/ML), Systems Architecture, Systems Development Life Cycle, Cloud Computing Architecture, Data Architecture, Data Integration, Systems Design, Functional Specification, Data Pipelines, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Feature Engineering, Anomaly Detection, Data Visualization, Data Presentation, MLOps (Machine Learning Operations), Agentic Workflows, Interactive Data Visualization, AI Orchestration, AI Security, A/B Testing, Generative AI Agents, Threat Management, Model Optimization, Open Web Application Security Project (OWASP), Technical Communication, Agentic systems, Continuous Monitoring, CI/CD, Reinforcement Learning
Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: Software Documentation, Test Automation, Generative AI, Software Testing, AI Security, Vulnerability Scanning, Vulnerability Assessments, Test Case, Secure Coding, Full-Stack Web Development, Technical Documentation
★ 4.2 (17) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Surveys, Survey Creation, Customer Insights, Data-Driven Marketing, Data Import/Export, Data Presentation, Market Research, Marketing Analytics, Customer Analysis, Marketing Strategies, Target Audience, Presentations, Data Analysis, Microsoft Excel, Target Market, Pivot Tables And Charts, Data-Driven Decision-Making, Data Storytelling, Spreadsheet Software, Data Capture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, Cloud Management, IT General Controls (ITGC), Cloud Security, Cloud Standards, Cloud Computing, Cyber Security Assessment, Cybersecurity, Security Testing, Control Objectives for Information and Related Technology (COBIT), Risk Management Framework, Identity and Access Management, Incident Response
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Data Strategy, Infrastructure Architecture, Financial Data, Business Modeling, Data-Driven Decision-Making, Database Architecture and Administration, Return On Investment, SQL, Data Transformation, Business Planning, Data Pipelines, Strategic Prioritization, Database Design, Financial Analysis, Business Continuity, Cost Benefit Analysis, Performance Metric
Advanced · Course · 1 - 4 Weeks