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 Pennsylvania
Skills you'll gain: People Analytics, Human Resource Strategy, Human Resources Management and Planning, People Management, Human Resources, Workforce Planning, Talent Management, Organizational Effectiveness, Performance Metric, Workforce Management, Analytics, Performance Appraisal, Staff Management, Performance Measurement, Employee Performance Management, Data-Driven Decision-Making, Performance Analysis, Social Network Analysis, Performance Management, Collaboration
★ 4.6 (6.2K) · Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Kubernetes, Role-Based Access Control (RBAC), CI/CD, Application Deployment, Network Troubleshooting, DevOps, Performance Tuning, Scalability, Continuous Integration, Containerization, Continuous Delivery, Continuous Deployment, Prometheus (Software), Package and Software Management, Authorization (Computing), Network Security, Network Performance Management, Identity and Access Management, Network Routing, Cyber Security Policies
★ 3.8 (31) · Advanced · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Open Web Application Security Project (OWASP), Incident Response, Penetration Testing, Risk Analysis, Computer Security Incident Management, Metasploit, Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Data Security, Authentications, Security Testing, Cloud Security, Security Strategy, Threat Management, Endpoint Detection and Response, Incident Management, Risk Management, Cyber Attacks
★ 4.7 (1.9K) · Beginner · Specialization · 3 - 6 Months
Stanford University
Skills you'll gain: Organizational Structure, Social Network Analysis, Decision Making, Organizational Leadership, Organizational Development, Organizational Change, Organizational Effectiveness, Strategic Decision-Making, Social Sciences, Culture, Sociology, Resource Management, Case Studies, Knowledge Transfer, Coordination, Influencing
★ 4.6 (1.7K) · Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Red Hat Enterprise Linux, Linux Administration, Linux Servers, Operating System Administration, Linux Commands, Linux, Network Troubleshooting, Systems Administration, Network Administration, Network Monitoring, Technical Support and Services, System Configuration, TCP/IP, System Monitoring, IT Automation, Unix Shell, Computer Networking, Unix Commands, Command-Line Interface, Network Protocols
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ajax, Javascript, Data Structures, Debugging, JSON, Web Development, Web Applications, Cascading Style Sheets (CSS), Computer Programming, HTML and CSS, Event-Driven Programming, Software Development, Git (Version Control System), Hypertext Markup Language (HTML), Application Programming Interface (API)
★ 4.5 (181) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Security Testing, Exploitation techniques, Vulnerability Assessments, Cyber Security Assessment, Server Side, Test Tools, Cyber Security Strategy, SQL, Hypertext Markup Language (HTML), Databases, Query Languages, SQL Server Integration Services (SSIS), Ethical Standards And Conduct, Amazon S3
Intermediate · Course · 1 - 3 Months

Skills you'll gain: React Native, Mobile Development, User Interface (UI) Design, Front-End Web Development, React Redux, Ajax, User Interface and User Experience (UI/UX) Design, Javascript, React.js, Data Structures, Application Development, Apple iOS, Debugging, iOS Development, UI Components, JavaScript Frameworks, User Story, Android Development, Mobile Development Tools, Database Application
★ 4.4 (975) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Video Editing, Apple software proficiency, Motion Graphics, Knowledge of Apple Software, Post-Production, Video Production, Photo/Video Production and Technology, Animations, Media Production, Data Import/Export, Editing, Content Management, File Management, Color Matching, Timelines, Augmented and Virtual Reality (AR/VR)
★ 4.4 (230) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Spring Framework, Java Programming, Java, File I/O, Java Platform Enterprise Edition (J2EE), Object Oriented Programming (OOP), Application Frameworks, Code Reusability, Object Oriented Design, Data Structures, File Management
★ 4.7 (224) · Intermediate · Course · 1 - 3 Months
Madecraft
Skills you'll gain: Social Network Analysis, Fraud detection, Network Analysis, Network Model, Databases, Analytics, Social Media Analytics, Relational Databases, Query Languages, Database Design, Marketing Analytics, Solution Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Loss Prevention, Microsoft 365, Personally Identifiable Information, Data Governance, Records Management, Cloud Security, Information Management, Data Security, Cloud Management, Document Management, Compliance Management, Security Controls, Continuous Monitoring, Governance Risk Management and Compliance, Cloud Applications, Encryption, Regulatory Compliance, Email Security, Event Monitoring
Intermediate · Course · 1 - 4 Weeks