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.

Board Infinity
Skills you'll gain: Spring Framework, Java Programming, Java, Application Frameworks, Java Platform Enterprise Edition (J2EE), Maintainability, Scalability, Extensible Markup Language (XML)
★ 3.4 (8) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Wiring Diagram, Electrical Wiring, Electrical Systems, Schematic Diagrams, AutoCAD, Communication Systems, Computer-Aided Design, Electrical Equipment, Diagram Design, Drafting and Engineering Design, Autodesk, Engineering Drawings, Verification And Validation, Systems Design, Systems Integration, Safety Standards, Safety and Security
★ 4.6 (11) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization, Interactive Data Visualization, Statistical Visualization, Data Visualization Software, Exploratory Data Analysis, Data Presentation, R (Software), Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Graphing, Histogram, Data Wrangling, Data Manipulation
★ 4.7 (20) · Mixed · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Product Strategy, Product Management, Prototyping, Product Development, New Product Development, Technical Product Management, Stakeholder Engagement, Team Oriented, Stakeholder Management, Design and Product, Design Thinking, Team Management, Product Design, Continuous Delivery, Organizational Structure, Cross-Functional Team Leadership, Design Strategies, Design, Customer Service, Design Specifications
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Target Audience, Target Market, Facebook, Earned Media, Persona Development, Customer Analysis, Owned Media, Social Media Marketing, Social Media Content, Business Marketing, Social Media, Business Planning, Drive Engagement, Marketing Planning, Digital Marketing
★ 4.6 (27) · Intermediate · Guided Project · Less Than 2 Hours

Sungkyunkwan University
Skills you'll gain: Portfolio Management, Portfolio Risk, Investment Management, Investments, Performance Analysis, Risk Modeling, R Programming, R (Software), Time Series Analysis and Forecasting, Risk Analysis, Financial Analysis, Market Data, Financial Modeling, Financial Forecasting, Financial Data, Statistical Programming, Risk Management, Correlation Analysis, Regression Analysis, Data Manipulation
★ 4.4 (7) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: React Native, User Interface (UI), User Interface and User Experience (UI/UX) Design, UI Components, Mobile Development, User Interface (UI) Design, UI/UX Strategy, Secure Coding, Development Testing, Unit Testing, Software Testing, Authentications, Data Security, Test Engineering, Debugging, iOS Development, Android (Operating System), Mobile Security, Interaction Design, Cross Platform Development
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Team Performance Management, Performance Analysis, Performance Measurement, Dashboard Creation, Dashboard, Return On Investment, Performance Improvement, Project Management Software, Goal Setting
Beginner · Course · 1 - 4 Weeks

Sciences Po
Skills you'll gain: Social Studies, Transportation Management, Land Management, Demography, Social Justice, Socioeconomics, Social Sciences, Public Safety and National Security, Community Development, Policy Analysis, Economic Development, Environmental Policy, Environmental Issue, Public Policies, Education and Training, Sociology, Cultural Diversity, Culture, Policy Development, Economics
★ 4.3 (29) · Beginner · Course · 1 - 3 Months

Institut Mines-Télécom
Skills you'll gain: Cybersecurity, Application Security, Cyber Attacks, Threat Modeling, Security Testing, Secure Coding, Security Controls, Exploitation techniques, Vulnerability Assessments, SQL, Databases
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Search Engine Optimization, Performance marketing, Content Optimization, Social Media Marketing, Pay Per Click Advertising, Web Analytics and SEO, Social Media, Content Marketing, Marketing, Online Advertising, Product Promotion, Blogs, Lead Generation, Marketing Strategies, Market Opportunities, Promotional Strategies, Product Knowledge, Target Audience
Mixed · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Emotional Intelligence, Sales Process, B2B Sales, Self-Awareness, Empathy & Emotional Intelligence, Personal Development, Enterprise Sales, Selling Techniques, Sales Management, Closing (Sales), General Sales Practices, Rapport Building, Empathy, Sales Enablement, Consumer Behaviour, Sales Strategy, Stakeholder Analysis, Customer Relationship Building, Sales, Stakeholder Management
Intermediate · Course · 3 - 6 Months