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: Network Troubleshooting, Virtual Local Area Network (VLAN), Computer Displays, Peripheral Devices, TCP/IP, Display Devices, Local Area Networks, Networking Hardware, Dynamic Host Configuration Protocol (DHCP), General Networking, USB, Wireless Networks, Computer Networking, Network Support, Network Routers, Network Infrastructure, Hardware Troubleshooting, Network Switches, Network Administration, Network Protocols
Beginner · Course · 1 - 3 Months

Skills you'll gain: Azure Active Directory, Single Sign-On (SSO), Identity and Access Management, Authentications, Authorization (Computing), Active Directory, Multi-Factor Authentication, Microsoft Azure, User Provisioning, Role-Based Access Control (RBAC), Enterprise Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Vulnerability Assessments, Vulnerability Management, Cyber Threat Intelligence, MITRE ATT&CK Framework, Cyber Security Strategy, Cybersecurity, Endpoint Detection and Response, Intrusion Detection and Prevention, Security Testing, IT Security Architecture, Cyber Attacks, Security Information and Event Management (SIEM), Cyber Engineering, Patch Management, Network Security, Malware Protection, Continuous Monitoring, Digital Forensics, Risk Analysis
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Machine Learning Methods, Supervised Learning, Classification Algorithms, Decision Tree Learning, Data Science, Machine Learning Algorithms, Data Analysis, Machine Learning, Correlation Analysis, Bayesian Network, Algorithms, Artificial Neural Networks, Model Evaluation
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Web Content Accessibility Guidelines, Test Automation, Usability, Human Centered Design, Test Tools, Usability Testing, User Interface (UI), Continuous Integration, CI/CD, UI Components
Advanced · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Arithmetic, Algorithms, Applied Mathematics, Probability, Computer Science
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Document Management, Intranet, Collaborative Software, Team Management, File Management, Content Management
Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Data Security, Cloud Security, Azure Active Directory, Microsoft Azure, Data Storage, Encryption, Cloud Storage, Microsoft SQL Servers, Authorization (Computing), Authentications, Database Management, Databases, Data Governance, Key Management, Identity and Access Management, Firewall
Intermediate · Course · 1 - 3 Months
University of Toronto
Skills you'll gain: Scientific Visualization, Data Visualization Software, Graphic and Visual Design, Statistical Visualization, Bioinformatics, Plot (Graphics), Ggplot2, Dimensionality Reduction, Scatter Plots, Design Elements And Principles, R Programming, Network Analysis, Heat Maps, Molecular Biology, Design Thinking, Statistical Analysis
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Social Media Analytics, Social Media Marketing, Business Intelligence, Predictive Modeling, Dashboard Creation, Predictive Analytics, Customer Analysis, Case Studies, Advanced Analytics, Business Strategies
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Convolutional Neural Networks, Model Optimization, Artificial Neural Networks, Deep Learning, Machine Learning Algorithms, Machine Learning Methods, Model Training, Image Analysis, Machine Learning, Computer Vision, Model Evaluation, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Exploit development, Metasploit, Vulnerability Scanning, Malware Protection, Exploitation techniques, Database Management, Security Testing, Cyber Security Strategy, Cryptographic Protocols, Vulnerability Assessments, Cyber Security Assessment, Cryptography, Cybersecurity, Brute-force attacks, Hardening, Database Software, Threat Detection, Linux, Linux Administration
Beginner · Specialization · 3 - 6 Months