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 System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Public Key Cryptography Standards (PKCS), Brute-force attacks, Key Management, Advanced Encryption Standard (AES), Encryption, Data Integrity, Information Systems Security, Cybersecurity, Authentications, Information Assurance, Data Security, Theoretical Computer Science, Computational Logic, Algorithms
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Networking Hardware, General Networking, Network Architecture, Wireless Networks, Network Protocols, Computer Networking, TCP/IP, Local Area Networks, Network Routers, System Configuration, Network Switches, Wide Area Networks, Servers
Build toward a degree
Beginner · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Real-Time Operating Systems, Embedded Software, Embedded Systems, Internet Of Things, Operating Systems, System Programming, Application Development, Wireless Networks, Hardware Architecture, Network Protocols, Simulations
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Angular, JavaScript Frameworks, Web Components, Application Deployment, Application Frameworks, Web Development Tools, Frontend Performance, Server Side, Restful API, Software Architecture
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Technical Sales, Sales, Sales Pipelines, Sales Strategy, Sales Process, AI Personalization, Customer Relationship Management (CRM) Software, Meeting Facilitation, Marketing Automation, Discussion Facilitation, Customer Analysis, Virtual Teams, Stakeholder Analysis, Influencing, Consultative Approaches, Account Strategy, Customer Relationship Management, Performance Analysis, Continuous Improvement Process, Customer Success Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Video Production, Adobe Express, Multimedia, Social Media Content, Cross-Channel Marketing, Content Marketing, Social Media, Marketing Analytics, Content Creation, Data Ethics, Marketing Effectiveness, Data-Driven Decision-Making, Marketing Strategies, Social Media Marketing, Marketing Design, Digital Media Strategy, Graphic and Visual Design, Infographics, Storytelling, Design Elements And Principles
Beginner · Specialization · 1 - 3 Months

New York University
Skills you'll gain: Supervised Learning, Model Evaluation, Reinforcement Learning, Applied Machine Learning, Machine Learning, Statistical Methods, Dimensionality Reduction, Unsupervised Learning, Artificial Neural Networks, Decision Tree Learning, Predictive Modeling, Financial Trading, Financial Market, Derivatives, Scikit Learn (Machine Learning Library), Markov Model, Regression Analysis, Deep Learning, Market Liquidity, Tensorflow
Intermediate · Specialization · 3 - 6 Months

Kennesaw State University
Skills you'll gain: Wireless Networks, Mobile Security, General Networking, Proxy Servers, Network Security, Cybersecurity, Virtual Private Networks (VPN), Security Awareness, Information Privacy, Emerging Technologies
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Engineering Management, Stakeholder Analysis, Project Scoping, Team Leadership, Team Management, Project Management, Stakeholder Management, Resource Management, Risk Management, Project Management Life Cycle, Requirements Analysis, Agile Methodology, Waterfall Methodology, Communication, Business Communication
Build toward a degree
Beginner · Course · 1 - 4 Weeks
University of Alberta
Skills you'll gain: Requirements Analysis, Requirements Elicitation, Requirements Management, Functional Requirement, Business Requirements, Product Requirements, Backlogs, User Requirements Documents, Scope Management, Change Control, User Story, System Requirements, Client Services, Acceptance Testing, Agile Software Development, Prioritization
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Job Control Language (JCL), Mainframe Computing, z/OS, Virtualization, Unix, IBM DB2, IBM Cloud, Data Management, Virtual Machines, Data Storage, Operating System Administration, Infrastructure Architecture, System Programming, Operating Systems, Unix Commands, File Systems, Linux, Computer Architecture, Control Panels, Command-Line Interface
Intermediate · Professional Certificate · 1 - 3 Months

Infosec
Skills you'll gain: Incident Response, Computer Security Incident Management, Cyber Operations, Cybersecurity, Cyber Threat Hunting, Intrusion Detection and Prevention, Security Management, Digital Forensics
Beginner · Course · 1 - 4 Weeks