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 Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Selenium (Software), Software Testing, Security Testing, Test Automation, Performance Testing, Functional Testing, Test Script Development, Mobile Development Tools, Test Tools, Performance Stress Testing, Test Planning, Frontend Performance
★ 3.7 (111) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Cryptographic Protocols, Data Integrity, Encryption, Authentications, Data Security, Data Encryption Standard, Advanced Encryption Standard (AES), Digital Communications
★ 4.5 (102) · Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Statistical Methods, Regression Analysis, Plot (Graphics), Data Cleansing, Statistical Hypothesis Testing, Correlation Analysis, Data Preprocessing, Matplotlib, Data Wrangling, Data Visualization, Statistical Analysis, Data Processing, Statistics, Analytics, Statistical Modeling, R Programming, Data Analysis, Statistical Inference, Pandas (Python Package), Python Programming
★ 4.4 (205) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Test Script Development, Development Testing, Software Testing, Testability, Java, Test Case, Program Development, Maintainability, Software Design
★ 3.6 (17) · Intermediate · Course · 1 - 4 Weeks

Tel Aviv University
Skills you'll gain: Political Sciences, World History, International Relations, Policy Analysis, Social Studies, Diplomacy, Culture, Governance, Public Safety and National Security
★ 4.8 (519) · Mixed · Course · 1 - 3 Months

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, Security Controls, Data Security, Email Security, Asset Protection, Endpoint Security, Business Process, Data Loss Prevention, Authentications
★ 4.7 (498) · Beginner · Course · 1 - 3 Months

Vanderbilt University
Skills you'll gain: JUnit, Unit Testing, Maintainability, Software Design Patterns, Software Testing, Test Automation, Integration Testing, Test Driven Development (TDD), Testability, Software Engineering, Test Tools, Secure Coding, Android Development, Application Security, Software Design, Mobile Security
★ 4.5 (297) · Mixed · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Data-Driven Marketing, Marketing Analytics, Customer Analysis, Business Marketing, Advanced Analytics, Marketing Strategies, Business Analytics, Statistical Programming, Customer Insights, R Programming, R (Software), Customer Data Management, Data-Driven Decision-Making, Data Analysis Software, Target Market, Predictive Analytics, Statistical Analysis, Statistical Modeling, Predictive Modeling, Statistical Methods
★ 4.6 (762) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Virtual Networking, Open Shortest Path First (OSPF), Computer Networking, Network Engineering, Network Planning And Design, TCP/IP, General Networking, OSI Models, Wireless Networks, Network Routing, Virtualization and Virtual Machines, Security Controls, Network Switches, Event Monitoring, Local Area Networks, Cloud Infrastructure, Puppet (Configuration Management Tool), IT Automation, Chef (Configuration Management Tool), Real Time Data
★ 4.7 (30) · Intermediate · Specialization · 1 - 3 Months

EC-Council
Skills you'll gain: Penetration Testing, Cybersecurity, Threat Management, Cloud Security, Mobile Security, Vulnerability Assessments, Network Security, Cyber Security Assessment, Application Security, Threat Detection, Security Testing, Cyber Attacks, Brute-force attacks, MITRE ATT&CK Framework, Encryption, Vulnerability Scanning, Cloud Computing, Exploitation techniques, Web Applications, Wireless Networks
Beginner · Course · 1 - 3 Months

New York Institute of Finance
Skills you'll gain: Reinforcement Learning, Recurrent Neural Networks (RNNs), Financial Trading, Deep Learning, Portfolio Management, Machine Learning Methods, Artificial Intelligence and Machine Learning (AI/ML), Model Training, Artificial Neural Networks, Machine Learning Software, Applied Machine Learning, Model Optimization, Markov Model, Securities Trading, Model Deployment, Risk Management
★ 3.4 (251) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Magnetic Resonance Imaging, Data Analysis, Correlation Analysis, Image Analysis, Statistical Analysis, Advanced Analytics, Network Analysis, Medical Imaging, Regression Analysis, Psychology, Time Series Analysis and Forecasting, Neurology, Statistical Modeling, Statistical Methods, Statistical Inference, Dimensionality Reduction, Model Evaluation
★ 4.7 (249) · Mixed · Course · 1 - 4 Weeks