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.

Coursera
Skills you'll gain: Email Marketing, Direct Marketing, Campaign Management, Data Cleansing, Driving engagement, Marketing Automation, Campaign Planning, Customer Engagement, Customer Retention, Drive Engagement, Analysis
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Bayesian Network, Bayesian Statistics, Markov Model, Probability, Decision Intelligence, Reinforcement Learning, Machine Learning Methods, Artificial Intelligence, Statistical Inference, Statistical Modeling, Network Model, Forecasting, Probability & Statistics, Dependency Analysis, Statistical Methods, Agentic systems, Applied Machine Learning, Probability Distribution, Time Series Analysis and Forecasting, Sampling (Statistics)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Storytelling, Data Presentation, Email Marketing, Performance Reporting, Storytelling, Strategic Communication, User Feedback, Presentations, Report Writing, Business Communication, Business Reporting, Performance Analysis, Key Performance Indicators (KPIs), Constructive Feedback, Stakeholder Engagement, Continuous Improvement Process
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Shiny (R Package), Interactive Data Visualization, Dashboard, Dashboard Creation, Data Visualization Software, R Programming, R (Software), Data Wrangling, User Interface (UI) Design, Ggplot2, Data Manipulation, Data Integration, Data Import/Export
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Salesforce Development, Salesforce, Data Ethics, AI Enablement, Artificial Intelligence, Responsible AI, Artificial Intelligence and Machine Learning (AI/ML), AI Personalization, AI literacy, AI Security, Data Quality, AI Integrations, Predictive Modeling, Customer Relationship Management (CRM) Software, Data Management, Customer Relationship Management, Business Ethics, Personalized Service, Data Import/Export
Intermediate · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Penetration Testing, Vulnerability Scanning, Vulnerability Assessments, Cyber Security Assessment, Network Security, Cybersecurity, Cloud Security, Vulnerability Management, Brute-force attacks, Security Testing, MITRE ATT&CK Framework, Test Planning, Cyber Threat Intelligence, Application Security, Open Web Application Security Project (OWASP), Network Analysis, OSI Models, Linux, Web Applications, Ethical Standards And Conduct
Advanced · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Big Data, Apache Hadoop, Data Infrastructure, Data Processing, Analytics, Data Science, Data Architecture, Distributed Computing, Linux, Software Installation, Scalability, System Configuration
★ 4.7 (7) · Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Virtualization, Virtualization and Virtual Machines, Virtual Machines, Data Storage, Virtual Networking, Data Storage Technologies, vSphere DRS & HA, Networking Hardware, Virtual Local Area Network (VLAN), Computing Platforms, Infrastructure Architecture, IT Infrastructure, Network Infrastructure, Capacity Management, Data Centers, Memory Management, Network Switches, Endpoint Security, Computer Hardware
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Statistical Inference, Statistical Programming, Regression Analysis, Logistic Regression, Statistical Methods, R Programming, Statistical Analysis, Statistical Modeling, R (Software), Predictive Modeling, Model Evaluation, Probability & Statistics, Statistical Hypothesis Testing, Probability Distribution
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: MLOps (Machine Learning Operations), Model Optimization, Version Control, Model Deployment, CI/CD, Git (Version Control System), Continuous Deployment, Performance Tuning, Continuous Integration, Software Versioning, Release Management, Continuous Delivery, Performance Testing, PyTorch (Machine Learning Library), Test Automation, Performance Improvement
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Network Analysis, Statistical Modeling, Bayesian Network, Applied Machine Learning, R (Software), R Programming, Social Network Analysis, Statistical Methods, Simulations, Network Model, Statistical Analysis, Probability & Statistics, Statistical Programming, Probability Distribution, Sampling (Statistics), Data Visualization, Machine Learning, Statistical Hypothesis Testing
Intermediate · Course · 1 - 4 Weeks
University of Glasgow
Skills you'll gain: Autoencoders, Deep Learning, Machine Learning Methods, Model Evaluation, Recurrent Neural Networks (RNNs), Machine Learning, Applied Machine Learning, Responsible AI, Convolutional Neural Networks, Interactive Data Visualization, Artificial Neural Networks
★ 4.6 (15) · Intermediate · Course · 1 - 4 Weeks