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.

Skills you'll gain: Security Controls, Security Management, Data Security, System Configuration, Security Awareness, Project Management Software, Identity and Access Management, Multi-Factor Authentication, Authentications
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Active Listening, Prospecting and Qualification, Sales Prospecting, Sales Development, Sales, Rapport Building, Value Propositions, Sales Pipelines, Lead Generation, General Sales Practices, User Research, Sales Process, Persona Development, Cold Calling, Intercultural Competence, Communication, Interpersonal Communications, Customer Analysis, Cultural Responsiveness, Cultural Sensitivity
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Sales Management, Team Leadership, Sales Training, Virtual Teams, Team Management, Sales Enablement, Team Motivation, Sales, Team Performance Management, Sales Pipelines, Sales Process, Innovation, Overcoming Objections, Conflict Management, Performance Analysis, Employee Onboarding, Drive Engagement, Employee Retention, Customer Engagement, Recognizing Others
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: TikTok, Content Creation, Video Editing, Video Production, Social Media Content, Social Media, Social Media Marketing, Algorithms, Driving engagement, Target Audience, Business Marketing, Customer Engagement, Culture, User Accounts, Demography
★ 4.8 (73) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Application Security, Authorization (Computing), Authentications, Data Validation, Encryption, Security Software, Security Controls, Data Security, Vulnerability Scanning, Endpoint Security, Role-Based Access Control (RBAC), Intrusion Detection and Prevention, Database Application, Security Awareness, Cybersecurity, Configuration Management, Web Applications, Web Development Tools
★ 4.5 (25) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Responsible AI, Case Studies, Governance, Compliance Management, Agentic systems, Program Implementation, Governance Risk Management and Compliance, Regulatory Compliance, Artificial Intelligence, Accountability Frameworks, Risk Analysis, Risk Management Framework, Regulatory Requirements, Business Ethics, Risk Management, Accountability
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Spring Boot, API Testing, Spring Framework, Restful API, Application Programming Interface (API), API Design, Data Persistence, Web Applications, Application Frameworks, Development Testing, Software Testing, Web Services, Object-Relational Mapping, Application Security, Authentications, Authorization (Computing), Network Protocols
★ 4.2 (29) · Beginner · Course · 1 - 4 Weeks

University of Glasgow
Skills you'll gain: Model Training, Model Evaluation, Matlab, Data Preprocessing, Model Optimization, Scientific Visualization, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Statistical Methods, Machine Learning Software, Mathematical Software, Statistical Machine Learning, Data Wrangling, Applied Mathematics, Data Validation, Data Processing, Mathematical Modeling, Artificial Neural Networks, Engineering Analysis, Engineering Design Process
★ 4.9 (145) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Disaster Recovery, Law, Regulation, and Compliance, Risk Management Framework, Risk Management, Compliance Management, Regulatory Compliance, Governance Risk Management and Compliance, Regulatory Requirements, Business Risk Management, Risk Analysis, Business Continuity Planning, Risk Mitigation, Cloud Security, Business Continuity, Contingency Planning, Cyber Risk, Cyber Governance, Security Management, Vendor Management, Supplier Risk Management
★ 4.8 (17) · Advanced · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Systems Development, Systems Development Life Cycle, Agile Methodology, Software Development Life Cycle, Productivity Software, Risk Management Framework, Agile Project Management, Data Security, Software Design, Systems Design, Risk Management, Software Development Methodologies, Information Technology, Information Systems, Project Risk Management, Systems Analysis, Computer Systems, Enterprise Risk Management (ERM), Business Systems Analysis, Microsoft Excel
★ 4.7 (43) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Networking Hardware, General Networking, Network Infrastructure, Local Area Networks, OSI Models, Network Protocols, Network Support, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), TCP/IP, Network Architecture, Computer Networking, Network Planning And Design, Wireless Networks, Network Security, Network Switches, Virtual Local Area Network (VLAN)
Beginner · Course · 1 - 4 Weeks

Shanghai Jiao Tong University
Skills you'll gain: Graph Theory, Theoretical Computer Science, Combinatorics, Logical Reasoning, Computational Thinking, Data Structures, Computer Science, Deductive Reasoning, Applied Mathematics, Algorithms, Network Model, Computer Networking
★ 4.3 (30) · Beginner · Course · 1 - 3 Months