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.

LearnQuest
Skills you'll gain: Reinforcement Learning, Decision Intelligence, AI Orchestration, Responsible AI, Agentic systems, Agentic Workflows, Data Ethics, Artificial Intelligence, Machine Learning Methods, Distributed Computing, AI Security, Model Training, Model Optimization
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Time Management, Productivity, Prioritization, Ability To Meet Deadlines, Goal Setting, Organizational Skills, Follow Through, Self-Awareness, Personal Development, Performance Improvement, Planning, Delegation Skills, Personal Attributes, Professional Development, Habit Formation
★ 4.7 (126) · Mixed · Course · 1 - 4 Weeks

University of California, Santa Cruz
Skills you'll gain: Research, Investigation, Storytelling, Case Studies, Content Creation, Political Sciences, Social Sciences, Psychological Evaluations, Public History, Media and Communications, World History, European History
★ 4.4 (42) · Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Hypertext Markup Language (HTML)
★ 4.5 (46) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Management Training And Development, Performance Measurement, Delegation Skills, Constructive Feedback, Leadership and Management, Behavior Management, Team Leadership, Team Performance Management, Employee Coaching, People Management, Leadership, Team Management, Performance Management, Telecommuting, Leadership Development, Trustworthiness, Behavioral Management, Employee Performance Management, Coaching, Office Management
Beginner · Course · 3 - 6 Months
Codio
Skills you'll gain: Apache Maven, Build Tools, JSON, JUnit, Java Programming, Java, Web Services, Programming Principles, Package and Software Management, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
★ 4.7 (37) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Security, Google Cloud Platform, Cloud Solutions, Cloud Computing Architecture, Network Planning And Design, Technical Design, System Implementation, System Configuration, Cloud Computing, Solution Architecture, Cloud Infrastructure, Security Controls, Cloud Storage
★ 4.8 (6) · Advanced · Course · 1 - 3 Months

Coursera
Skills you'll gain: Content Performance Analysis, Web Analytics and SEO, Search Engine Optimization, Keyword Research, Data-Driven Marketing, Web Analytics, Content Optimization, Performance Analysis, Semantic Web, Performance Metric, Content Management Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Intune (Mobile Device Management Software), Application Deployment, Group Policy, Enterprise Application Management, Cloud Deployment, Cloud Applications, Mobile Security, Identity and Access Management, Security Controls, Configuration Management
★ 4.9 (16) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Apache Airflow, Vector Databases, Performance Tuning, Scalability, Database Management Systems, Database Management, Data Pipelines, MySQL, Data Import/Export
★ 4.1 (23) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Conversion Funnel Analysis, Marketing Analytics, Data-Driven Marketing, Web Analytics, Digital Analysis, Customer Analysis, Marketing Automation, Customer Insights, Correlation Analysis, Statistical Methods, Statistical Analysis, Web Analytics and SEO, Decision Intelligence, System Monitoring, Model Evaluation, Continuous Monitoring, Quality Assessment, Data Validation, Verification And Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Security Incident Management, Incident Management, Security Management, Digital Forensics, Disaster Recovery, Risk Management Framework, Cybersecurity, NIST 800-53, Threat Management, Risk Management, Cyber Security Policies, Security Controls, Cloud Security, Virtualization and Virtual Machines, Cloud Computing, Scenario Testing
★ 4.8 (10) · Intermediate · Course · 1 - 4 Weeks