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 Michigan
Skills you'll gain: Investment Management, Wealth Management, Asset Management, Investments, FinTech, Financial Trading, Portfolio Management, Market Data, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Financial Services, Big Data, Financial Market, Artificial Neural Networks, Automation, Finance, Machine Learning Methods, Financial Analysis, Machine Learning
★ 4.7 (422) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Problem Solving, Agentic systems, Computational Thinking, Computer Vision, Game Theory, Image Analysis, Artificial Neural Networks, Probability Distribution, Decision Intelligence, Behavioral Economics, Analysis, Convolutional Neural Networks, Logical Reasoning, Algorithms, Human Development, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, AI literacy, Theoretical Computer Science, Psychology
★ 4.4 (370) · Beginner · Specialization · 3 - 6 Months

L&T EduTech
Skills you'll gain: Electrical Systems, Electric Power Systems, Electrical Power, Energy and Utilities, Control Systems, Electrical Equipment, Three-Phase, High Voltage, Wiring Diagram, Network Model, Electrical Engineering, Systems Analysis, Engineering Analysis, Failure Analysis, Simulation and Simulation Software, Network Analysis, Numerical Analysis, Engineering Calculations, Mathematical Modeling, Simulations
★ 4.5 (47) · Intermediate · Specialization · 1 - 3 Months

Infosec
Skills you'll gain: Cyber Threat Hunting, Cyber Threat Intelligence, Threat Detection, Threat Management, Endpoint Detection and Response, Cybersecurity, Security Information and Event Management (SIEM), Anomaly Detection, Generative AI, Endpoint Security, Event Monitoring, Digital Forensics, Network Analysis, Linux
★ 4.5 (139) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Hardening, Cybersecurity, Security Testing, Vulnerability Assessments, Network Analysis, Exploitation techniques, Linux, System Configuration, Linux Administration, Virtual Machines, Linux Commands, Operating Systems, Software Installation
★ 4.9 (31) · Mixed · Course · 1 - 4 Weeks

IE Business School
Skills you'll gain: Marketing Communications, Integrated Marketing Communications, Advertising Campaigns, Advertising, Brand Loyalty, Campaign Planning, Brand Management, Marketing, Branding, Communication Planning, Online Advertising, Brand Strategy, Public Relations, Marketing Planning, Marketing Budgets, Digital Advertising, Social Media Marketing, Digital Marketing, Marketing Management, Communication
★ 4.8 (711) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Data Visualization, Statistical Visualization, R (Software), Data Import/Export, Data Visualization Software, R Programming, Tidyverse (R Package), Statistical Reporting, Data Manipulation, Data Wrangling, Data Processing, File Management, Software Installation
★ 4.7 (309) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Web Services, Extensible Markup Language (XML), Java, Web Applications
★ 4.1 (13) · Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Search Engine Marketing, Digital Brand Strategy, Keyword Research, Digital Marketing, Online Advertising, Search Engine Optimization, Content Marketing, Social Media Marketing, Social Media Strategy, Digital Media Strategy, Social Media, Web Analytics and SEO, Storytelling, Marketing Strategies, Marketing Strategy and Techniques, Pay Per Click Advertising, Marketing Communications, Digital Advertising, Customer Relationship Management, Brand Management
★ 4.7 (242) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Safety Culture, Threat Detection, Cyber Threat Intelligence, Cyber Governance, AI Security, Cybersecurity, Compliance Training, Security Awareness, Responsible AI, Cyber Security Strategy, Cyber Risk, Culture Transformation, Cyber Security Policies, Cyber Operations, Cyber Security Assessment, Leadership Development, Cross-Functional Team Leadership, Team Leadership, Team Building, Team Motivation
Beginner · Course · 1 - 4 Weeks

Campus BBVA
Skills you'll gain: Incident Response, Computer Security Incident Management, Incident Management, Security Management, Crisis Management, Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Cyber Threat Intelligence, Threat Management, Cyber Risk, Security Awareness, Data Security, Email Security, Asset Protection, Mobile Security, Endpoint Security, Business Process, Data Loss Prevention, Authentications
★ 4.7 (498) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cyber Security Assessment, Cybersecurity, Scenario Testing, Simulations, Infrastructure Security, Computer Security Incident Management, Incident Response, Security Controls, Network Security, Role-Based Access Control (RBAC), Risk Management Framework, Disaster Recovery, Encryption
★ 4.6 (46) · Intermediate · Course · 1 - 4 Weeks