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.

National Taiwan University
Skills you'll gain: Operations Research, Mathematical Modeling, Report Writing, Applied Mathematics, Network Model, Business Modeling, Industrial Engineering, Research Reports, Model Optimization, Linear Algebra, Numerical Analysis, Operational Analysis, Statistical Machine Learning, Inventory Control, Case Studies, Process Optimization, Algorithms, Project Design, Machine Learning, Business Analytics
★ 4.8 (734) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Inventory Control, Key Performance Indicators (KPIs), Medical Office Procedures, Time Management, Patient Communication, Patient Flow, Patient Education And Counseling, Record Keeping, Patient Coordination, Health Care Administration, Medical Records, Care Coordination, Scheduling, Emergency Response, Inventory Management, Triage, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Clinical Documentation, Patient Safety, Active Listening
★ 4 (6) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Financial Statements, Revenue Forecasting, Budget Management, Financial Statement Analysis, Business Intelligence Software, Financial Forecasting, Power BI, Financial Analysis, Cash Flows, Cost Management, Spreadsheet Software, Balance Sheet, Financial Reporting, Microsoft Excel, Dashboard, Data Visualization, Key Performance Indicators (KPIs), Business Intelligence
★ 3.7 (7) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Vulnerability Assessments, Cyber Operations, Cybersecurity, Cyber Threat Intelligence, Cyber Attacks, Cyber Security Strategy, IT Security Architecture, MITRE ATT&CK Framework, Cyber Threat Hunting, Threat Detection, Cyber Security Assessment, Network Security, Security Information and Event Management (SIEM), DevSecOps, Malware Protection, Security Management, Cloud Security, Encryption, Authentications
★ 4.5 (28) · Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Prompt Engineering, Anthropic Claude, Experience Design, Generative AI, LLM Application, User Interface and User Experience (UI/UX) Design, Application Programming Interface (API), Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), AI Integrations, Application Development, Authentications, Context Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Email Marketing, Data-Driven Marketing, Marketing Automation, Marketing Operations, Copywriting, A/B Testing, Information Privacy, Campaign Management, Email Security, Data-Driven Decision-Making, Target Audience, Conversion Funnel Analysis, Content Optimization, HubSpot CRM, General Data Protection Regulation (GDPR), Customer Data Management, Content Performance Analysis, Email Automation, Compliance Management, Marketing Analytics
Beginner · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Portfolio Management, Derivatives, Financial Market, Securities (Finance), Investment Management, Portfolio Risk, Asset Management, Credit Risk, Mortgage Loans, Mathematical Modeling, Investments, Applied Mathematics, Risk Modeling, Estimation, Capital Markets, Futures Exchange, Financial Modeling, Regression Analysis, Market Liquidity, Statistical Methods
★ 4.6 (430) · Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Model Optimization, Machine Learning Methods, Applied Mathematics, Calculus, Applied Machine Learning, Numerical Analysis, Machine Learning Algorithms, Software Visualization, Machine Learning, Python Programming, Advanced Mathematics, Artificial Neural Networks, Deep Learning, Computer Programming, Derivatives
★ 4.8 (966) · Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Memory Management, Back-End Web Development, Go (Programming Language), Code Reusability, Software Design Patterns, Computer Programming Tools, Data Store, Software Architecture, Data-oriented programming, Systems Design, Data Structures, System Programming, Programming Principles, Object Oriented Programming (OOP), Cloud Development, Computer Programming, Logical Reasoning, Programmable Logic Controllers, Application Development, Open Source Technology
Beginner · Specialization · 1 - 3 Months

Multiple educators
Skills you'll gain: Content Marketing, Content Performance Analysis, Content Scheduling, Content Strategy, Marketing Strategy and Techniques, Content Development and Management, Campaign Planning, Social Media Campaigns, Search Engine Optimization, Social Media Marketing, Large Language Modeling, Content Optimization, Copywriting, Digital Marketing Campaigns, ChatGPT, Marketing Analytics, Competitive Analysis, Generative AI, Relationship Building, Drive Engagement
★ 4.5 (6.6K) · Intermediate · Specialization · 3 - 6 Months
University of Michigan
Skills you'll gain: HTML and CSS, PHP (Scripting Language), Hypertext Markup Language (HTML), MySQL, Web Applications, Web Design and Development, Web Development, Secure Coding, Cascading Style Sheets (CSS), Development Environment, Back-End Web Development, Database Development, Web Servers, Scripting Languages, Programming Principles, Network Protocols, Software Installation, Data Validation
★ 4.7 (4.3K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Financial Reporting, Credit Risk, Business Reporting, Financial Accounting, Compliance Reporting, Risk Modeling, Financial Forecasting, Generally Accepted Accounting Principles (GAAP), Accounting, Technical Accounting, Financial Analysis, Balance Sheet, Forecasting, Estimation, Requirements Analysis, Business Requirements, Analysis, Business Analysis, Decision Making, Business
Mixed · Course · 1 - 4 Weeks