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 Colorado Boulder
Skills you'll gain: Statistical Modeling, Data Science, Statistical Methods, Statistical Analysis, Model Evaluation, Regression Analysis, Predictive Modeling, R Programming, Machine Learning, Classification Algorithms, Supervised Learning, Unsupervised Learning, Machine Learning Algorithms
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Hardening, Linux Administration, System Monitoring, Linux Commands, Performance Tuning, Linux, Systems Administration, File Management, Network Troubleshooting, Unix Commands, Debugging, Service Management, User Accounts, OS Process Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Load Balancing, Scalability, Microservices, .NET Framework, Redis, Application Performance Management, Cloud Computing Architecture, Cloud Applications, Databases, System Monitoring, Software Architecture, Distributed Computing, C# (Programming Language), Microsoft Azure, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Management, Social Media Content, Social Media, Scheduling, Social Media Marketing, Social Media Strategy
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Canva (Software), Logo Design, Video Production, Infographics, Graphic and Visual Design, Graphic Design, Content Creation, Social Media Marketing, Marketing Communications
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Blockchain, User Interface and User Experience (UI/UX) Design, Cryptography, Secure Coding, Application Security, Web Development Tools, React Redux, Encryption, User Experience Design, Key Management, Application Design, Cryptographic Protocols, Application Development, Web Applications, Software Development Tools, Legal Technology, Vulnerability Assessments, Frontend Integration, Data Security, Interoperability
Intermediate · Specialization · 1 - 3 Months

Copenhagen Business School
Skills you'll gain: Artificial Intelligence, Large Language Modeling, Natural Language Processing, Theoretical Computer Science, Human Learning, Statistical Analysis, Artificial Neural Networks, Computational Thinking, Human Computer Interaction, Social Impact
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Risk Analysis, Securities (Finance), Financial Analysis, Credit Risk, Financial Market, Investments, Risk Management, Market Dynamics, Portfolio Management, Finance, Wealth Management, Investment Banking
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Model Deployment, Prompt Patterns, Microsoft Azure, OpenAI API, Large Language Modeling, OpenAI, Application Deployment, Embeddings, Application Programming Interface (API), Scalability
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Open Shortest Path First (OSPF), Network Administration
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Project Schedules, Stakeholder Management, Information Technology, Project Risk Management, Environmental Social And Corporate Governance (ESG), IT Management, Vendor Management, Procurement, Project Management, Stakeholder Communications, Issue Tracking, Project Management Life Cycle, Project Controls, Risk Management, Agile Methodology, Performance Measurement, Project Planning, Resource Management, Quality Management, Performance Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: PyTorch (Machine Learning Library), Data Preprocessing, Transfer Learning, Convolutional Neural Networks, Medical Imaging, Radiology, Image Analysis, Deep Learning, Python Programming
Intermediate · Guided Project · Less Than 2 Hours