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.

Skills you'll gain: Command-Line Interface, Virtualization and Virtual Machines, Network Security, Virtualization, Operating Systems, Hardware Troubleshooting, Information Technology Operations, Network Troubleshooting, Computer Hardware, Network Support, Cloud Computing, Mac OS, Security Controls, Microsoft Windows, Information Systems Security, System Configuration, Operating System Administration, Network Infrastructure, Data Storage, Peripheral Devices
★ 4.6 (285) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Vulnerability Management, Threat Modeling, Incident Response, Intrusion Detection and Prevention, Threat Management, Network Security, Operating Systems, Threat Detection, Risk Management, Security Information and Event Management (SIEM), Risk Management Framework, Computer Security Incident Management, Cyber Attacks, Bash (Scripting Language), Security Controls, Cybersecurity, Debugging, File I/O, Linux, SQL
★ 4.9 (7.4K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Adobe Express, Content Scheduling, Marketing Strategies, Personalized Campaigns, Data-Driven Marketing, Promotional Strategies, Marketing Planning, Social Media Content, Digital Marketing Campaigns, Responsible AI, Digital Marketing, Cross-Channel Marketing, Logo Design, Generative AI, Campaign Management, Social Media Marketing, Graphic Design, Content Strategy, Advertising, Market Research
★ 4.7 (3.1K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Keras (Neural Network Library), Deep Learning, Transfer Learning, Artificial Neural Networks, Recurrent Neural Networks (RNNs), Convolutional Neural Networks, Model Optimization, Machine Learning Methods, Image Analysis, Applied Machine Learning, Autoencoders, Model Training, Regression Analysis, Network Architecture, Natural Language Processing, Machine Learning
★ 4.7 (2.1K) · Intermediate · Course · 1 - 3 Months
Macquarie University
Skills you'll gain: Excel Formulas, Microsoft Excel, Excel Macros, Data Validation, Spreadsheet Software, Data Modeling, Financial Forecasting, Predictive Modeling, Financial Modeling, Data Integrity, Visual Basic (Programming Language), Business Modeling, Automation, Data Security
★ 4.8 (8.5K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Systems Administration, IT Security Architecture, Operating System Administration, Information Systems Security, Remote Access Systems, IT Infrastructure, Hardening, Network Troubleshooting, OSI Models, Computer Networking, Routing Protocols, Application Security, TCP/IP, Cloud Management, Technical Support, Microsoft Windows, File Systems, Package and Software Management, Computer Hardware, Software Installation
★ 4.9 (7.3K) · Beginner · Professional Certificate · 3 - 6 Months

Pragmatic AI Labs
Skills you'll gain: AI Security, Claude Code, Responsible AI, AI Integrations, Prompt Engineering, DevSecOps, Secure Coding, Prompt Engineering Tools, Information Privacy, Security Testing, Application Security, Vulnerability Scanning, Code Review, CI/CD, AI literacy, Vulnerability Assessments, AI Orchestration, Security Awareness, GitHub, Command-Line Interface
Beginner · Course · 1 - 4 Weeks
Stanford University
Skills you'll gain: Bayesian Network, Applied Machine Learning, Decision Intelligence, Bayesian Statistics, Graph Theory, Machine Learning Algorithms, Probability Distribution, Network Model, Statistical Modeling, Machine Learning Methods, Markov Model, Decision Support Systems, Machine Learning, Unsupervised Learning, Probability & Statistics, Network Analysis, Statistical Inference, Model Training, Statistical Machine Learning, Model Optimization
★ 4.6 (1.5K) · Advanced · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, 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, Platform As A Service (PaaS)
★ 4.4 (162) · Beginner · Course · 1 - 4 Weeks
University of Washington
Skills you'll gain: Machine Learning Methods, Network Model, Electrophysiology, Applied Machine Learning, Supervised Learning, Machine Learning Algorithms, Artificial Neural Networks, Reinforcement Learning, Sensory Systems Analysis, Matlab, Mathematical Modeling, Computer Vision, Neurology, Mathematical Software, Recurrent Neural Networks (RNNs), Physiology, Biology, Differential Equations, Probability Distribution
★ 4.6 (1.1K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: System Monitoring, Data Analysis Expressions (DAX), Real Time Data, Performance Tuning, Microsoft Azure, Dataflow, Data Pipelines, Data Warehousing, Power BI, Apache Spark, Data Governance, Business Analytics, SQL, Data Management, Workflow Management, Data Science, Security Engineering, Artificial Intelligence and Machine Learning (AI/ML), Warehouse Management, Application Deployment
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cash Flow Forecasting, Variance Analysis, Bookkeeping, Reconciliation, QuickBooks (Accounting Software), Invoicing, Cash Flows, Financial Analysis, Auditing, Process Optimization, Document Management, Microsoft Excel, Data Transformation, Financial Reporting, Compliance Reporting, Compliance Management, AI Enablement, Automation, Data Validation, Process Engineering
★ 3.4 (20) · Intermediate · Specialization · 3 - 6 Months