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: Relationship Building, Professional Development, Strategic Leadership, Initiative and Leadership, Leadership, Personal Development, Self-Awareness, Branding, Goal Setting, General Networking, Growth Mindedness, Business
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: NSX-T Network Virtualization, Software-Defined Networking, Zero Trust Network Access, Virtual Networking, Virtual Local Area Network (VLAN), Network Switches, Network Architecture, Network Routing, Network Security, Load Balancing, Network Performance Management, Firewall, Network Protocols, Scalability
Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Cloud Security, Amazon Web Services, Encryption, AWS Identity and Access Management (IAM), Amazon S3, Data Security, Cryptography, Personally Identifiable Information
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Vulnerability Assessments
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Windows Servers, Authorization (Computing), Microsoft Windows, Authentications, Operating System Administration, User Accounts, Group Policy, Microsoft Servers, Security Controls, Enterprise Security, Active Directory, Identity and Access Management, Software Installation, Servers, Computer Security, System Configuration, Encryption
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Preprocessing, Deep Learning, Artificial Neural Networks, Logistic Regression, Data Cleansing, Artificial Intelligence and Machine Learning (AI/ML), Python Programming, Model Evaluation, Network Architecture, Machine Learning Algorithms, NumPy, Pandas (Python Package), Performance Tuning
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Linux Administration, Linux, Linux Servers, Operating System Administration, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Computer Security, Network Administration, Authentications
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, Google Cloud Platform, Security Controls, Cloud Computing, Virtual Networking, Firewall, Network Security, Data Access, Role-Based Access Control (RBAC), Authorization (Computing), Single Sign-On (SSO), Authentications, Public Cloud, Load Balancing
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Event Monitoring, Incident Response, Security Management, Cyber Security Policies, Command-Line Interface, System Monitoring, Configuration Management, Object Oriented Design, User Interface (UI), Computer Displays, Simulations
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Record Keeping, Security Testing, Data Management, Threat Management, Records Management, Cloud Computing Architecture, Authentications, Data Security, Firewall, Cyber Attacks, Cybersecurity, Malware Protection, System Testing, Cyber Threat Intelligence, Authorization (Computing), Generative Adversarial Networks (GANs), Active Directory, Data Ethics, AI Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Endpoint Security, Computer Security Incident Management, Mobile Security, Security Awareness, Malware Protection, Operating System Administration, Email Security, Android (Operating System), Data Maintenance, Multi-Factor Authentication, System Configuration, Apple iOS, Hardware Troubleshooting, Network Administration, Authentications, Change Control
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Data Access, Role-Based Access Control (RBAC), Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Security Strategy, Data Sharing, Responsive Web Design, Compliance Reporting, User Accounts, Application Development, Mobile Development, Customer Relationship Management (CRM) Software, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks