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: LinkedIn, Professional Networking, Applicant Tracking Systems, Social Media, Editing, Job Analysis
Intermediate · Guided Project · Less Than 2 Hours

Universitat Autònoma de Barcelona
Skills you'll gain: Computer Vision, Image Analysis, Classification Algorithms, Convolutional Neural Networks, Machine Learning Algorithms, Supervised Learning, Machine Learning, Deep Learning, Artificial Intelligence, Model Evaluation, Algorithms
Mixed · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Software Documentation, LLM Application, Collaborative Software, Software Testing, Large Language Modeling, Dependency Analysis, Security Testing, Debugging, Software Engineering, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: File Systems, Operating Systems, OS Process Management, C (Programming Language), System Programming, Unix, Virtualization, Data Integrity, Debugging, File I/O, Linux, Performance Tuning, Distributed Computing, Data Storage, Command-Line Interface, Virtual Machines, Data Security, Computer Hardware, Scalability, Data Structures
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Audit Planning, Auditing, Internal Controls, Risk Management Framework, Continuous Monitoring, Compliance Auditing, Project Coordination, Financial Controls, Quality Assurance, Information Systems Security, Cyber Security Assessment, Governance, Presentations
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Digital Assets, FinTech, Business Strategy, Strategic Decision-Making, Governance, Financial Services, Financial Regulation, Ledgers (Accounting), Work Breakdown Structure, Project Implementation, Business Modeling, Banking Services, Financial Systems, Project Design, Solution Design, Cryptography, Design, Emerging Technologies, Payment Systems
Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Cyber Security Policies, Cyber Security Assessment, Risk Management Framework, Security Management, Cyber Risk, Cybersecurity, Threat Management, Cyber Governance, Security Awareness
Mixed · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Finance, Investments, Business Valuation, Portfolio Management, Financial Modeling, Financial Market, Equities, Return On Investment, Financial Analysis, Regression Analysis, Corporate Finance, Asset Management, Microsoft Excel, Risk Analysis, Performance Analysis, Cash Flows
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Software Design, Software Development Life Cycle, Application Security, Technical Design, Software Architecture, Software Development Methodologies, Conceptual Design, Requirements Analysis
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cloud-Native Computing, Software-Defined Networking, Cloud Deployment, Virtual Networking, Cloud Infrastructure, Network Infrastructure, Application Deployment, Network Architecture, Cloud Computing Architecture, Cloud Technologies, Containerization, Computer Networking, Digital Transformation, Cloud Platforms, Kubernetes, Microservices, Infrastructure Architecture, Hardware Architecture, Operational Efficiency, General Networking
Beginner · Specialization · 1 - 3 Months

Packt
Skills you'll gain: Cloud Computing Architecture, Cloud Infrastructure, Cloud Deployment, Cloud Security, Cloud Computing, Incident Response, Cloud Management, Cloud Services, Disaster Recovery, Capacity Management, Virtual Networking, IT Automation, Network Troubleshooting, Virtual Machines, Virtualization, Application Deployment, Application Security, System Monitoring, Security Controls, Capacity Planning
Intermediate · Specialization · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Public Cloud, Cloud Computing Architecture, Cloud Computing, Application Programming Interface (API), Cloud Services, Scalability, Cloud Platforms, Amazon Web Services, Infrastructure As A Service (IaaS), Technical Services, Systems Administration, Solution Architecture, Security Engineering
Beginner · Course · 1 - 4 Weeks