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.

Coursera
Skills you'll gain: Accounts Payable, Accounts Payable and Receivable, Invoicing, Billing & Invoicing, Data Entry, Payment Processing and Collection, Transaction Processing, SAP Applications, Accounting Systems, Accounting Records, General Ledger, Enterprise Resource Planning, Compliance Management
★ 2.7 (6) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Google Cloud Platform, Cloud Infrastructure, Kubernetes, Cloud Development, Generative AI, Load Balancing, Virtual Machines, Cloud Platforms, Infrastructure As A Service (IaaS), Cloud Storage, Virtual Networking, Cloud Services, Network Routing, TCP/IP, Network Architecture, General Networking, Firewall, Network Infrastructure, Network Planning And Design
★ 4.5 (706) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Change Management, Organizational Change, Management Training And Development, Leadership and Management, Storytelling, Business Transformation, Culture Transformation, Strategic Leadership, Drive Engagement, Organizational Leadership, Stakeholder Communications, Empathy, Stakeholder Engagement, Communication, Emotional Intelligence, Team Motivation, Sustainable Systems, Resilience, Constructive Feedback, Communication Strategies
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Financial Auditing, Document Management, Auditing, Audit Planning, Accounting Records, Compliance Auditing, Document Control, File Management, Organizational Skills
★ 3.5 (6) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Billing, Billing & Invoicing, Billing Systems, Invoicing, Payment Processing and Collection, Accounts Receivable, Financial Data, Business Metrics, Cash Management, Accounting, Prioritization, Cash Flows, Analysis
★ 1.4 (7) · Beginner · Course · 1 - 4 Weeks
Amazon Web Services
Skills you'll gain: Amazon CloudWatch, Containerization, Microservices, Cloud-Native Computing, Docker (Software), Amazon Web Services, Kubernetes, Application Deployment, Serverless Computing, Cloud Deployment, System Monitoring, Scalability
★ 4.6 (179) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Loans, Lending and Underwriting, Blockchain, General Lending, Derivatives, FinTech, Market Liquidity, Financial Trading, Token Optimization, Securities (Finance), Digital Assets, Liquidation, Portfolio Management
★ 4.9 (315) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Problem Solving, Agentic systems, Computational Thinking, Computer Vision, Game Theory, Image Analysis, Artificial Neural Networks, Probability Distribution, Decision Intelligence, Behavioral Economics, Analysis, Convolutional Neural Networks, Logical Reasoning, Algorithms, Human Development, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, AI literacy, Theoretical Computer Science, Psychology
★ 4.4 (370) · Beginner · Specialization · 3 - 6 Months

Rutgers the State University of New Jersey
Skills you'll gain: Competitive Analysis, Supply Chain, Supply Chain Systems, Market Opportunities, Supply Chain Management, Market Share, Benchmarking, Transportation, Supply Chain, and Logistics, Customer Analysis, Supply Chain Planning, Customer experience improvement, Customer experience strategy (CX), Inventory and Warehousing, Analytics, Financial Analysis, Inventory Management System, Inventory Control, Financial Data, Data Analysis, Cost Estimation
★ 4.7 (827) · Beginner · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Exploit development, Penetration Testing, Security Strategy, Vulnerability Scanning, Security Testing, Application Security, Vulnerability Assessments, Code Review, Vulnerability Management, Secure Coding, Authorization (Computing), Exploitation techniques, Java, Security Controls, Java Programming, Patch Management, Dependency Analysis, Docker (Software)
★ 4.4 (67) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Control Systems, Programmable Logic Controllers, Animations, Human Machine Interfaces, UI Components, Real-Time Operating Systems, Control Panels, Interactive Design, Code Reusability, Program Development, Electronic Hardware, Simulations, Interactive Data Visualization, System Monitoring, Automation Engineering, System Configuration, Machine Controls, Plant Operations and Management, Computer Hardware, Network Troubleshooting
★ 4.7 (23) · Intermediate · Specialization · 3 - 6 Months

UNSW Sydney (The University of New South Wales)
Skills you'll gain: Requirements Analysis, Requirements Management, Requirements Elicitation, Business Requirements, Technical Writing, Functional Requirement, Product Requirements, Engineering Documentation, Business Writing, System Requirements, Project Documentation, Editing, Systems Engineering
★ 4.6 (358) · Beginner · Course · 1 - 4 Weeks