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.

University of Geneva
Skills you'll gain: Healthcare Ethics, Emergency Medical Services, Patient Safety, Health Care Procedure and Regulation, Health Care, Patient Advocacy, Health Systems, Safety Assurance, Legal Risk, Community Health, Crisis Intervention, Ethical Standards And Conduct, Safety and Security, Law, Regulation, and Compliance, Mitigation, Emergency Response, Health Policy, Risk Management
★ 4.5 (80) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Routing Protocols, Software-Defined Networking, Wide Area Networks, Virtual Networking, Network Troubleshooting, Open Shortest Path First (OSPF), Network Routing, Network Architecture, Network Monitoring, Network Planning And Design, Virtual Private Networks (VPN), Border Gateway Protocol, Network Performance Management, Network Security, Network Administration, Network Engineering, Firewall, Amazon Web Services, Cloud Services, Network Infrastructure
★ 5 (7) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Microbiology, Pharmacology, Sensory Systems Analysis, Health Disparities, Molecular Biology, Infection Control, Infectious Diseases, Chemistry, Social Sciences, Biochemistry, Psychology, Molecular, Cellular, and Microbiology, Sociology, Cultural Sensitivity, Analytical Chemistry, Immunology, Behavior Management, Biology, Decision Making, Taxonomy
★ 4.5 (22) · Intermediate · Professional Certificate · 3 - 6 Months

Illinois Tech
Skills you'll gain: Recurrent Neural Networks (RNNs), Deep Learning, Generative AI, Convolutional Neural Networks, Transfer Learning, Model Optimization, Image Analysis, Artificial Neural Networks, Generative Model Architectures, Generative Adversarial Networks (GANs), Fine-tuning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Network Architecture, Computer Vision, Network Model, Natural Language Processing, Model Training
★ 4.5 (34) · Beginner · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Computer Vision, Image Analysis, Dimensionality Reduction, Artificial Neural Networks, Machine Learning Methods, Deep Learning, Graph Theory, Machine Learning Algorithms
★ 4.6 (35) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cash Flow Forecasting, Cash Management, Cash Flows, Financial Forecasting, Forecasting, Accounting Software, QuickBooks (Accounting Software), Financial Modeling
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: AI Enablement, Google Sheets, Google Gemini
★ 4.8 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Medical Billing, Medical Billing and Coding, Claims Processing, Revenue Cycle Management, Medical Office Procedures, Clinical Documentation, Medical Coding, Billing & Invoicing, CPT Coding
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: TikTok, Content Performance Analysis, Data-Driven Marketing, Online Advertising, Performance Measurement, Advertising, Advertising Campaigns, Digital Advertising, Marketing Analytics, Key Performance Indicators (KPIs), Marketing, Marketing Strategies, E-Commerce, Social Media Marketing, Social Media Analytics, Campaign Management, Product Promotion, Market Analysis
★ 4.7 (73) · Beginner · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Generative AI, Retrieval-Augmented Generation, Large Language Modeling, Generative Model Architectures, Machine Learning Methods, Google Gemini, ChatGPT, OpenAI, Natural Language Processing, Artificial Intelligence and Machine Learning (AI/ML), Tensorflow, Prompt Engineering, Applied Machine Learning, Machine Learning, Deep Learning, Machine Learning Algorithms, Computer Vision, Predictive Modeling, Supervised Learning, Text Mining
★ 3.8 (74) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Email Security, Microsoft Outlook, Calendar Management, Gmail, Setting Appointments, Meeting Facilitation, Organizational Skills, Microsoft Office, Google Workspace, Scheduling, Encryption, Productivity Software
★ 4.7 (93) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Prompt Engineering, Vibe coding, Debugging, Large Language Modeling, LLM Application, AI Security, Application Programming Interface (API), Responsible AI, Development Environment, AI Integrations, Computer Programming Tools, No-Code Development, Program Development, Integrated Development Environments, Programming Principles
★ 4.4 (29) · Beginner · Course · 1 - 4 Weeks