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: Unix Shell, Shell Script, Unix, Bash (Scripting Language), Linux Commands, Linux, Unix Commands, Linux Servers, Secure Coding, Maintainability, Hardening, Command-Line Interface, Debugging, Windows PowerShell, Scripting, Scripting Languages, Authorization (Computing), Cross Platform Development, Mac OS, Security Management
Advanced · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Internet Of Things, Security Engineering, Information Systems Security, Wireless Networks, Infrastructure Security, General Networking, Cybersecurity, IBM Cloud, Cloud Platforms, Cryptography, Telecommunications, Network Protocols, Market Opportunities, Automation, Emerging Technologies, Embedded Systems, Cloud Deployment, Software-Defined Networking, Market Intelligence
★ 4.7 (630) · 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

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

Infosec
Skills you'll gain: Application Security, Serverless Computing, Secure Coding, Risk Management Framework, Cloud Security, Threat Management, Infrastructure Security, Cloud Services, Cloud Platforms, Javascript, Node.JS
★ 4.6 (32) · Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Salesforce, Data Management, Salesforce Development, Data Maintenance, Data Security, Information Management, Data Architecture, Data Entry, Data Sharing, Records Management, Data Access, Role-Based Access Control (RBAC), Authorization (Computing), Data Quality, Record Keeping, User Provisioning, Identity and Access Management, System Configuration, Security Controls, User Accounts
Intermediate · Course · 1 - 3 Months

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

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

Amazon Web Services
Skills you'll gain: Cloud Security, Encryption, Amazon Web Services, Data Security, Cryptography, Security Controls, Cryptographic Protocols
★ 4.8 (57) · Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Computer Security, OSI Models, IT Management, Systems Administration, Virtualization, Virtualization and Virtual Machines, Network Security, Information Technology, Information Systems Security, Enterprise Security, General Networking, Cybersecurity, Network Administration, Security Management, Computing Platforms, Network Infrastructure, Security Controls, Virtual Machines, Enterprise Architecture, Information Assurance
★ 4.7 (642) · Beginner · 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