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: Threat Modeling, IT Security Architecture, Threat Management, Security Architecture Review, Threat Detection, Internet Of Things, Network Security, Information Systems Security, Security Controls, Data Security, Cryptographic Protocols, Vulnerability Assessments, Risk Management Framework, Authentications, Cloud Computing Architecture
Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Cloud Deployment, Agentic Workflows, Model Deployment, Application Deployment, Generative AI Agents, Agentic systems, AI Workflows, Token Optimization, LLM Application, Cloud Hosting, Virtual Machines, System Configuration, Automation, Servers, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), AI Security, Context Engineering, Generative AI, Prompt Engineering
Intermediate · Course · 1 - 4 Weeks

Stanford Online
Skills you'll gain: Social Network Analysis, Network Analysis, Social Sciences, Sociology, Socioeconomics, Game Theory, Behavioral Economics, Mathematical Modeling, Statistical Modeling, Bayesian Statistics, Probability
Advanced · Course · 1 - 3 Months

IBM
Skills you'll gain: COBOL (Programming Language), Debugging, Program Development, Programming Principles, Development Testing, Software Testing, Computer Programming, Maintainability, Business Logic
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Programming, Java, Object Oriented Programming (OOP), Computer Programming, Object Oriented Design, Development Environment, Programming Principles, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Feature Engineering, Bioinformatics, Model Training, Dimensionality Reduction, Predictive Modeling, Applied Machine Learning, Artificial Neural Networks, Machine Learning Methods, Predictive Analytics, Pandas (Python Package), Drug Development, Data Preprocessing, Unsupervised Learning, Data Manipulation, Medical Science and Research, Molecular, Cellular, and Microbiology, Scientific Visualization, Molecular Biology, Machine Learning
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Authentications, Cloud Security, Threat Management, Cybersecurity, Threat Detection, Security Awareness, Cyber Attacks, Exploitation techniques, Network Security, Vulnerability Assessments, Cloud Services, Cloud Computing, Vulnerability Management, Data Security, Human Factors (Security), Incident Response, Software As A Service
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Java, Java Programming, Eclipse (Software), Object Oriented Programming (OOP), Development Environment, Object Oriented Design, Integrated Development Environments, Computer Programming, Program Development, Virtual Machines, Software Installation
Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Internet Of Things, Networking Hardware, Network Infrastructure, Network Routers, General Networking, Embedded Software, Network Switches, Network Protocols, Network Architecture, Security Controls, Wireless Networks, Network Administration, Network Routing, Local Area Networks, Infrastructure Security, Telecommunications, Communication Systems, Distributed Computing, Python Programming, Machine Learning
Intermediate · Specialization · 3 - 6 Months

Kennesaw State University
Skills you'll gain: Cyber Threat Intelligence, Human Factors (Security), Threat Management, Security Awareness, Cybersecurity, Computer Security Awareness Training, Cyber Security Strategy, Cyber Risk, Cyber Attacks, Security Management, End User Training and Support, Human Factors, Behavioral Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Development, Mobile Development Tools, iOS Development, Other Mobile Programming Languages, Flutter (Software), Integrated Development Environments, Development Environment, Apple iOS, Android Studio, Computer Programming Tools, Application Development, Swift Programming, Test Tools, React Native, Apple Xcode, Application Frameworks, Web Applications, Cross Platform Development, Software Testing, Cloud Hosting
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, Cloud Computing Architecture, DevOps, Development Environment, Application Deployment, Virtualization, Cloud Computing, Linux Administration, Devops Tools, Cloud Infrastructure, Containerization, Cloud Platforms, Infrastructure As A Service (IaaS), Software Versioning, Virtualization and Virtual Machines, Software As A Service, Virtual Networking, Virtual Machines
Beginner · Course · 1 - 4 Weeks