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

Skills you'll gain: Google Cloud Platform, Data Migration, DevOps, Cloud Management, CI/CD, Cloud Security, Cloud Computing, Cloud API, Key Management, Artificial Intelligence and Machine Learning (AI/ML), Encryption, Model Training, System Monitoring, Applied Machine Learning, Identity and Access Management, Data Pipelines, Real Time Data, Data Analysis, Analytics, Data Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Amazon S3, Cloud Security, Data Security, Cloud Storage, AWS Identity and Access Management (IAM), Encryption, Key Management, Security Controls, Data Storage Technologies, Data Storage, Authorization (Computing), Cryptography, Identity and Access Management, Cryptographic Protocols, Public Key Infrastructure, Data Sharing, Data Access, Disaster Recovery, Record Keeping
Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Security Testing, Application Security, Vulnerability Scanning, Risk Mitigation, Cyber Security Assessment, Vulnerability Management, Cyber Attacks, Security Engineering, Risk Analysis, Web Applications, Security Awareness, Computer Security, Security Management, Cyber Security Strategy, Authentications, Software Development, Linux, Linux Commands
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Azure, Identity and Access Management, Network Security, Cloud Security, IT Security Architecture, Security Management, Data Storage, Security Information and Event Management (SIEM), Firewall, Role-Based Access Control (RBAC), Security Controls, Continuous Monitoring, Key Management, Computer Security Incident Management, Incident Response, Event Monitoring, Threat Detection
★ 4.7 (9) · Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Command-Line Interface, Penetration Testing, Vulnerability Assessments, Security Testing, Vulnerability, Cyber Security Assessment, Vulnerability Scanning, Infrastructure Security, Cyber Operations, Security Controls, Network Monitoring, Network Security, Security Management, Human Factors (Security), Security Strategy, Security Awareness, Event Monitoring, IT Automation, Network Analysis
Intermediate · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: User Accounts, Multi-Factor Authentication, User Provisioning, Identity and Access Management, Zero Trust Network Access, AWS Identity and Access Management (IAM), Account Management, Authorization (Computing), Authentications, Security Controls, Security Assertion Markup Language (SAML), Security Management, Security Awareness, Security Software, Security Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Security Assertion Markup Language (SAML), Spring Framework, OAuth, Authorization (Computing), Authentications, Single Sign-On (SSO), Java Programming, Role-Based Access Control (RBAC), Spring Boot, Secure Coding, Identity and Access Management, Data Persistence, Apache Tomcat, Public Key Infrastructure, Databases
Advanced · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Cyber Attacks, Data Security, Safety and Security, Cybersecurity, Application Security, Security Software, Computer Security Awareness Training, Cyber Security Strategy, Information Systems Security, Cyber Security Assessment, Security Controls, Disaster Recovery, Data Loss Prevention, Incident Response, Data Storage, Vulnerability Assessments, Patch Management
★ 4.6 (77) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

British Standards Institution
Skills you'll gain: Model Evaluation, Vulnerability Assessments, Performance Testing, Risking, Verification And Validation, Artificial Neural Networks, Statistical Methods, Deep Learning, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Test Data, Regression Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Public Key Infrastructure, IT Security Architecture, Cloud Security, Hardening, Security Engineering, Cryptographic Protocols, Infrastructure Security, Information Systems Security, System Configuration, Cryptography, Endpoint Security, Key Management, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks