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.

Infosec
Skills you'll gain: Cyber Governance, Security Management, Cybersecurity, Governance, Leadership Studies, Cyber Security Strategy, Information Assurance, Leadership, Change Management, Governance Risk Management and Compliance, Organizational Change
★ 4.4 (91) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MongoDB, Node.JS, Angular, Restful API, API Design, NoSQL, Bootstrap (Front-End Framework), Database Development, Scalability, JavaScript Frameworks, Authentications, Query Languages, Web Frameworks, Web Applications, JSON, Application Programming Interface (API), Database Management, Authorization (Computing), Distributed Computing, Web Development Tools
★ 4.7 (163) · Beginner · Specialization · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: Tax Planning, Tax Management, Income Tax, Consumer Lending, Tax Preparation, Payroll Tax, Tax, Tax Compliance, Payment Systems, Deposit Accounts, Loans, Tax Returns, Banking, Credit Risk, Financial Systems, Financial Services, Financial Planning, Mortgage Loans, Real Estate, Transaction Processing
Beginner · Specialization · 1 - 3 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

Microsoft
Skills you'll gain: Microsoft Copilot, Microsoft 365, Personalized Campaigns, Sales Enablement, Marketing Automation, Marketing Operations, Customer experience improvement, Generative AI, Business Process Automation, Data-Driven Marketing, Campaign Management, AI Security, Sales Process, Sales Strategy, Customer Service, Business Metrics, AI Personalization, Customer Support, AI Integrations, Critical Thinking
★ 4.5 (51) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Make.com, AI Workflows, Business Workflow Analysis, Workflow Management, No-Code Development, Email Automation, Agentic Workflows, AI Security, Decision Intelligence, AI Orchestration, Process Analysis, Process Mapping, Generative AI Agents, Process Design, AI Integrations, Productivity Software, Calendar Management, Agentic systems, Responsible AI, Development Testing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Security, Security Controls, Data Loss Prevention, Health Care Procedure and Regulation, Computer Security Awareness Training, Cybersecurity, Cryptographic Protocols, Role-Based Access Control (RBAC), AWS Identity and Access Management (IAM)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Security Testing, Test Tools, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Application Security, Network Protocols, Web Applications, Test Automation, Development Environment, Proxy Servers, Authentications, Software Installation, System Configuration
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Security Management, Cyber Governance, IT Management, Cybersecurity, Cyber Security Strategy, Cyber Risk, Security Strategy, Key Performance Indicators (KPIs), Leadership and Management, Internal Communications, Leadership, Communication Planning, Performance Metric, Program Management, Risk Management, Risk Management Framework, Corporate Communications, Stakeholder Communications
★ 4.6 (51) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Training, Regression Analysis, NumPy, Machine Learning Algorithms, Machine Learning, Model Optimization, Deep Learning, Data Science, Python Programming
★ 4.6 (441) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Application Deployment, Data Maintenance, Network Architecture, Cloud Infrastructure, Data Storage, Network Infrastructure, Scalability, Issue Tracking, Public Cloud, General Networking, Network Monitoring, Data Security, Serverless Computing, Network Planning And Design, Network Security, Authentications, Infrastructure Security, Authorization (Computing), Data Loss Prevention, Remote Access Systems
★ 4 (23) · Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Dashboard Creation, Interactive Data Visualization, Devops Tools, Cloud Deployment, Business Metrics, Kubernetes, Microservices, Distributed Computing, Anomaly Detection
Intermediate · Course · 1 - 4 Weeks