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.

Johns Hopkins University
Skills you'll gain: Sustainable Development, Sustainable Systems, Water Sustainability, Nutrition and Diet, Food and Beverage, Nutrition Education, Public Health, Environmental Issue, Public Health and Disease Prevention, Environment and Resource Management, Health Disparities, Systems Thinking, Climate Change Adaptation, Climate Change Mitigation
★ 4.8 (194) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Google Analytics, Dashboard Creation, Data Storytelling, Content Performance Analysis, Data Validation, Stakeholder Engagement, Statistical Modeling, Search Engine Optimization, Marketing Analytics, Web Analytics, Marketing Automation, Data Visualization, Customer Insights, Data-Driven Decision-Making, Campaign Management, Key Performance Indicators (KPIs), Predictive Analytics, Performance Measurement, Return On Investment, Artificial Intelligence
Intermediate · Specialization · 3 - 6 Months

L&T EduTech
Skills you'll gain: Geospatial Information and Technology, Spatial Analysis, GIS Software, Spatial Data Analysis, Geographic Information Systems, Geospatial Mapping, Construction Engineering, Database Management, Database Management Systems, Construction, Construction Management, ArcGIS, Relational Databases, Visualization (Computer Graphics), Global Positioning Systems, Data Mapping, Building Information Modeling, Scientific Visualization, Engineering, Scientific, and Technical Instruments, Network Analysis
★ 4.3 (79) · Advanced · Specialization · 3 - 6 Months

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, Cryptographic Protocols, Encryption, Public Key Cryptography Standards (PKCS), FinTech, Emerging Technologies, Ledgers (Accounting), Distributed Computing, Case Studies, Digital Assets, Data Integrity, Transaction Processing
★ 4.7 (846) · Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: White-Box Testing, Acceptance Testing, Software Development Methodologies, Configuration Management, Debugging, Systems Development Life Cycle, Software Development Life Cycle, Software Testing, Software Development, Software Engineering, Unified Modeling Language, Software Quality Assurance, Software Configuration Management, User Acceptance Testing (UAT), System Design and Implementation, Change Control, Test Case, Requirements Analysis, Waterfall Methodology, Project Management
★ 4.7 (150) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Social Media Analytics, Social Media Marketing, Business Intelligence, Predictive Modeling, Dashboard Creation, Predictive Analytics, Customer Analysis, Case Studies, Advanced Analytics, Business Strategies
Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Data Visualization, Business Analytics, Data Presentation, Analytics, Interactive Data Visualization, Statistical Visualization, Data Literacy, Data Analysis, Analytical Skills, Big Data, Asset Management, Feasibility Studies, Business Modeling, Intellectual Property, Data Quality, Information Management, Network Model, Data Strategy, Data-Driven Decision-Making, Business Intelligence
★ 4.6 (420) · Beginner · Specialization · 1 - 3 Months

Rice University
Skills you'll gain: Graph Theory, Algorithms, Computational Thinking, Data Analysis, Data Structures, Theoretical Computer Science, Network Analysis, Analysis, Programming Principles, Python Programming, Program Development
★ 4.6 (385) · Intermediate · 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, 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), JSON
★ 4.4 (68) · Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Test Automation, Regression Testing, Software Testing, Software Engineering Tools, Test Script Development, Test Tools, White-Box Testing, Code Coverage, Security Testing, Verification And Validation, Test Case, Test Data, Functional Requirement, Application Security, Vulnerability Scanning
★ 4.2 (87) · Intermediate · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Social Justice, Conflict Management, Sustainable Development, Social Impact, International Relations, Community and Social Work, Social Work, Sociology, Advocacy, World History, Demography, Law, Regulation, and Compliance, Storytelling, Peer Review
★ 4.8 (92) · Beginner · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Cloud Solutions, Cloud Security, Data Literacy, System Monitoring, Private Cloud, Data-Driven Decision-Making, Business Analytics, Team Oriented, Exploratory Data Analysis, Data Management, Hybrid Cloud Computing, Data Visualization Software, Virtual Machines, Process Design, Enterprise Security, Software As A Service, Data Processing, Data Manipulation, Statistical Software, Data Import/Export
★ 4.5 (124) · Beginner · Specialization · 1 - 3 Months