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.

John Wiley & Sons
Skills you'll gain: Database Administration, Disaster Recovery, Database Architecture and Administration, Database Systems, Database Management, Database Management Systems, Operational Databases, Data Maintenance, Relational Databases, Databases, Database Design, Data Management, Business Continuity Planning, Database Software, Database Theory, Transaction Processing, Data Governance, Data Security, SQL, Business Continuity
Intermediate · Specialization · 1 - 3 Months

Università di Napoli Federico II
Skills you'll gain: Political Sciences, International Relations, World History, Diplomacy, Social Sciences, Public Safety and National Security, European History, Environmental Issue, Socioeconomics, Conflict Management, Climate Change Programs, Governance, Crisis Intervention, Economic Development, Trend Analysis, Security Strategy
★ 4.5 (12) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Variance Analysis, Financial Analysis, Financial Data, Financial Statement Analysis, Financial Statements, Business Communication, Business Analysis, Communication, Accounting, Accounting Records, Budgeting, Verification And Validation, Anomaly Detection, Strategic Thinking, Investigation, Root Cause Analysis
Mixed · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Run Chart, Data Collection, Data Analysis, Quality Improvement, Continuous Quality Improvement (CQI), Data Quality, Healthcare Project Management, Statistical Analysis, Data Literacy, Statistical Methods, Data Visualization, Data-Driven Decision-Making, Sampling (Statistics), Graphing, Decision Making
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Health Policy, Health Systems, Public Health, Health Administration, Research Design, Systems Analysis, Scalability, Technical Communication
★ 4.7 (42) · Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Amazon Web Services, Amazon S3, Amazon Elastic Compute Cloud, Amazon Redshift, Cloud Hosting, Amazon DynamoDB, Cloud Services, Cloud Engineering, Cloud Infrastructure, Cloud Storage, Database Administration, Cloud Deployment, Cloud Computing Architecture, Databases, Network Planning And Design, Virtual Networking, Servers, Database Management, Network Infrastructure, Cloud Security
★ 4.4 (17) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Digital Marketing Tools, Marketing Automation, Scheduling, Management Reporting, Business Reporting, Performance Reporting, Automation, Stakeholder Communications, Scalability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, Agentic Workflows, Generative AI Agents, Agentic systems, AI Orchestration, AI Integrations, Advanced Analytics, Enterprise Architecture, Automation, Artificial Intelligence, Continuous Improvement Process, Data Quality, Scalability, Performance Tuning, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Graphics Software, Animation and Game Design, Graphic and Visual Design, Social Media Content, Social Media Marketing, Graphic Design, Social Media, Graphic and Visual Design Software, Content Creation, Marketing Design, Instagram, Editing, Photo Editing, Branding, Marketing, Video Editing
★ 4.8 (115) · Beginner · Guided Project · Less Than 2 Hours

John Wiley & Sons
Skills you'll gain: Investments, Portfolio Management, Investment Management, Portfolio Risk, Wealth Management, Asset Protection, Brokerage, Financial Market, Return On Investment, International Finance, Asset Management, Real Estate, Property and Real Estate, Securities (Finance), Risk Management, Securities Trading, Capital Markets, Market Analysis, Market Dynamics, Market Opportunities
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Virtualization and Virtual Machines, Linux, Performance Tuning, Cloud-Native Computing, Linux Servers, Virtualization, Virtual Machines, Data Storage, Data Storage Technologies, Hybrid Cloud Computing, AI Enablement, Security Controls, Mainframe Computing, Hardware Architecture, Infrastructure Architecture, Virtual Networking, Mainframe Technologies, Networking Hardware, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.6 (34) · Beginner · Course · 1 - 3 Months

The University of Chicago
Skills you'll gain: Keras (Neural Network Library), Machine Learning Methods, Unsupervised Learning, Machine Learning Algorithms, Deep Learning, Machine Learning, Statistical Machine Learning, Machine Learning Software, Decision Tree Learning, Applied Machine Learning, Scikit Learn (Machine Learning Library), Classification Algorithms, Supervised Learning, Regression Analysis, Artificial Intelligence and Machine Learning (AI/ML), Random Forest Algorithm, Model Training, Dimensionality Reduction, Model Evaluation, Data Preprocessing
★ 3.9 (25) · Intermediate · Course · 1 - 3 Months