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: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, Web Applications, Object Oriented Design, Software Design Patterns, Software Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Medical Privacy, Medical Records, Health Information Management and Medical Records, Health Information Management, Medical Office Procedures, Record Keeping, Information Privacy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Remote Access Systems, Local Area Networks, Software Installation, Command-Line Interface, Threat Management, Microsoft Windows, System Configuration, Threat Detection, Information Technology Operations, Wireless Networks, Systems Administration, Network Security, TCP/IP, Information Systems Security, Peripheral Devices, USB, Operating Systems, Computer Hardware, Data Storage Technologies
Beginner · Specialization · 3 - 6 Months

University of California, Davis
Skills you'll gain: Data Visualization, Data Synthesis, Data Presentation, Data Storytelling, Business Research, Presentations, Storytelling, Research Reports, Marketing Communications, Social Media Campaigns, Market Research, Marketing Effectiveness, Data-Driven Decision-Making, Social Media Marketing, Advertising, Customer Insights, Data Analysis, Target Audience, Digital Advertising, Digital Marketing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: ISO/IEC 27001, Auditing, Audit Planning, Security Controls, Cyber Security Policies, Security Management, Information Systems Security, Risk Management, Risk Management Framework, Security Requirements Analysis, Identity and Access Management, Information Technology
Intermediate · Course · 1 - 3 Months

Universitat Autònoma de Barcelona
Skills you'll gain: Computer Security Awareness Training, Operating Systems, Computer Literacy, digital literacy, File Management, Data Security, Information Technology, Computer Hardware, Safety and Security, Computer Systems
Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Business Systems Analysis, Systems Analysis, Requirements Analysis, Business Requirements, Business Analysis, Business Systems, Process Flow Diagrams, User Requirements Documents, Data Modeling, Data Flow Diagrams (DFDs), Business Process Modeling, Diagram Design, Feasibility Studies, Decision Making, Project Management
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Disaster Recovery, Data Management, Google Cloud Platform, Cloud Infrastructure, Data Integration, Cloud Services, SAP Applications, Cloud Computing Architecture, Identity and Access Management, Cloud Deployment, Cloud Computing, Cloud Management, Cloud Security, Data Migration, IT Infrastructure, Cloud Storage, Systems Design
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Operations Research, Algorithms, Graph Theory, Network Model, Combinatorics, Mathematical Software, Mathematical Modeling, Theoretical Computer Science, Model Optimization, Python Programming
Build toward a degree
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Hardening, Cybersecurity, Security Testing, Vulnerability Assessments, Network Analysis, Exploitation techniques, Linux, System Configuration, Linux Administration, Virtual Machines, Linux Commands, Operating Systems, Software Installation
Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Containerization, Cloud Development, Microservices, Devops Tools, Webhook Security, Virtualization, OS Process Management, Package and Software Management, Data Persistence, Scalability, Application Lifecycle Management, Command-Line Interface
Beginner · Specialization · 1 - 3 Months

Infosec
Skills you'll gain: Cyber Security Policies, Cyber Security Assessment, Risk Management Framework, Security Management, Cyber Risk, Cybersecurity, Cyber Governance, Cyber Security Strategy, Command-Line Interface
Mixed · Course · 1 - 4 Weeks