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 Hypothesis Testing, Descriptive Statistics, Statistical Visualization, Data Transformation, Data Cleansing, Statistical Analysis, Regression Analysis, Probability, Probability Distribution, Sampling (Statistics), Box Plots, Histogram, R Programming, Statistical Methods, Scatter Plots, Microsoft Excel, Probability & Statistics, Statistics, Data Import/Export, Data Analysis
Beginner · Specialization · 3 - 6 Months

Imperial College London
Skills you'll gain: Immunology, Infectious Diseases, Oncology, Internal Medicine, Pathology, Pharmacotherapy, Molecular, Cellular, and Microbiology, Chronic Diseases
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Bootstrap (Front-End Framework), UI Components, Full-Stack Web Development, JavaScript Frameworks, Web Applications, Web Components, Database Management, Software Development Tools, Software Architecture, Development Environment, Software Testing, NoSQL, Web Servers, Application Frameworks, Application Security, Authentications, Middleware, Performance Tuning, Semantic Web, Authorization (Computing)
Beginner · Specialization · 1 - 3 Months

Google Cloud
Skills you'll gain: Firewall, Cloud Security, Network Security, Google Cloud Platform, Virtual Networking, Cloud Computing, Virtual Machines, Network Architecture, Computer Networking, Scalability, Web Applications
Advanced · Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Flutter (Software), Cross Platform Development, Mobile Development, Web Applications, UI Components, Package and Software Management, Development Environment, Network Analysis
Beginner · Project · Less Than 2 Hours

Whizlabs
Skills you'll gain: Amazon S3, Cloud Storage, Data Storage, Data Storage Technologies, Amazon Elastic Compute Cloud, AWS Identity and Access Management (IAM), Security Controls, File Management, File Systems, Encryption
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Regression Analysis, NumPy, Supervised Learning, Machine Learning Algorithms, Machine Learning, Predictive Modeling, Deep Learning, Data Science, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

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

Coursera
Skills you'll gain: Journals, Organizational Skills, Document Management, Information Architecture, Content Management, Network Analysis, System Configuration
Beginner · Guided Project · Less Than 2 Hours

University of Glasgow
Skills you'll gain: Responsible AI, digital literacy, Data Ethics, Data Integrity, Ethical Standards And Conduct, Artificial Intelligence, AI Security, Research, Generative AI, Intellectual Property, Human Computer Interaction
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Image Analysis, Model Evaluation, Deep Learning, Matlab, Convolutional Neural Networks, Data Preprocessing, Machine Learning Methods, Machine Learning, Classification Algorithms, Machine Learning Algorithms, Transfer Learning, Visualization (Computer Graphics), Geospatial Information and Technology, Traffic Flow Optimization, Medical Imaging, Data Validation, Estimation, Artificial Intelligence and Machine Learning (AI/ML), Algorithms
Intermediate · Specialization · 1 - 3 Months

Infosec
Skills you'll gain: Penetration Testing, Linux Commands, Command-Line Interface, Linux, Cybersecurity, Operating System Administration, Operating Systems, Windows PowerShell, Unix Commands, Microsoft Windows, Computer Systems, Mac OS
Mixed · Course · 1 - 4 Weeks