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.

Coursera
Skills you'll gain: Root Cause Analysis, Problem Management, Solution Delivery, Issue Tracking, Plan Execution, Corrective and Preventive Action (CAPA), Sprint Planning, Milestones (Project Management), Discussion Facilitation, Project Management Software, Performance Measurement, Accountability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IT Management, IT General Controls (ITGC), Control Objectives for Information and Related Technology (COBIT), Cloud Management, Information Technology, Risk Management Framework, Governance Risk Management and Compliance, Quality Assurance, Compliance Auditing, Organizational Change, Internal Auditing, Technology Strategies, Governance, Quality Monitoring, Audit Planning, Information Technology Infrastructure Library, Risk Management, Cloud Computing, Cloud Services, Business Priorities
★ 4.9 (17) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Secure Coding, Threat Modeling, Security Testing, Software Development Life Cycle, Systems Development Life Cycle, Security Controls, Security Architecture Review, Risk Management Framework, Security Engineering, Computer Security, Software Testing, Security Requirements Analysis, Security Management, Software Development, Authorization (Computing), Data Security, Identity and Access Management, Software Architecture, Software Design
★ 4.3 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Ubuntu, Lightweight Directory Access Protocols, File Systems, Linux, Virtualization and Virtual Machines, Linux Commands, Bash (Scripting Language), Linux Servers, Firewall, Virtual Machines, Package and Software Management, Virtualization, Remote Access Systems, File Management, Operating System Administration, Systems Administration, Shell Script, Containerization, Git (Version Control System)
★ 4.8 (15) · Intermediate · Specialization · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Deep Learning, Convolutional Neural Networks, Autoencoders, Recurrent Neural Networks (RNNs), Image Analysis, Embeddings, Model Deployment, Applied Machine Learning, Artificial Neural Networks, Health Informatics, Machine Learning, Medical Science and Research, Unsupervised Learning, Dimensionality Reduction
★ 3.9 (15) · Advanced · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Salesforce, Email Marketing, User Accounts, User Provisioning, Dashboard, Administration, Business Reporting, Collaborative Software, Data Maintenance, Data Cleansing, UI/UX Strategy, Data Integration, Application Deployment, Data Import/Export, Internal Communications, Data Management, Business Administration, Cloud Computing, Data Security, Automation
★ 4.6 (27) · Beginner · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Wireless Networks, Network Security, Local Area Networks, Network Infrastructure, Network Architecture, Network Administration, Cryptographic Protocols, Networking Hardware, System Configuration, Authentications, Encryption
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Database Design, Database Development, Query Languages, SQL, Database Architecture and Administration, Data Modeling, Database Management
Advanced · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Disaster Recovery, Mitigation, Public Safety and National Security, Risk Management Framework, Emergency Response, Geospatial Information and Technology, Policy Analysis, Research, and Development, Policy Development, Public Policies, Spatial Data Analysis, Social Studies, Systems Thinking, Governance, Case Studies
★ 4.7 (91) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: User Accounts, Collaborative Software, Telecommuting, Telecommunications
★ 4.1 (26) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: AWS SageMaker, Amazon Web Services, Model Deployment, Image Analysis, Applied Machine Learning, Model Training, Machine Learning Algorithms, Data Preprocessing, Computer Vision, Deep Learning, Machine Learning
★ 4.5 (95) · Advanced · Guided Project · Less Than 2 Hours

University of Virginia
Skills you'll gain: Design Thinking, Creative Problem-Solving, Ideation, Innovation, Open Mindset, Market Opportunities, Creativity, Storytelling, Strategic Thinking, Data Visualization, Growth Mindedness, Test Tools, Entrepreneurship, Peer Review
★ 4.8 (113) · Beginner · Course · 1 - 3 Months