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.

Royal Holloway, University of London
Skills you'll gain: Computer Security Incident Management, Cyber Governance, Incident Management, Incident Response, Security Management, Cyber Security Strategy, Cyber Security Policies, Human Factors (Security), Security Awareness, ISO/IEC 27001, Cyber Risk, Security Strategy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Incident Response, IT Security Architecture, Secure Coding, Application Security, Identity and Access Management, Information Systems Security Assessment Framework (ISSAF), Security Testing, Continuous Monitoring, Information Systems Security, Network Security, Computer Security Incident Management, Security Strategy, Zero Trust Network Access, Security Awareness, Security Information and Event Management (SIEM), Risk Management Framework, Disaster Recovery, Cybersecurity, Enterprise Architecture
Beginner · Specialization · 1 - 3 Months

AI CERTs
Skills you'll gain: Threat Modeling, Application Security, Secure Coding, Scalability, Blockchain, Web Development, Program Development, Cryptographic Protocols, Cryptography, Payment Systems, Transaction Processing, Real Time Data
Intermediate · Course · 1 - 4 Weeks

PepsiCo
Skills you'll gain: Water Sustainability, Water Resource Management, Water Resources, Hydrology, Water Quality, Stormwater Management, Corporate Sustainability, Stakeholder Engagement, Natural Resource Management, Environment and Resource Management, Supply Chain Management, Economic Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Content, Social Media, Presentations, Social Media Marketing, Content Creation, Instagram, Facebook, Content Marketing, LinkedIn, Digital Marketing, Graphic Design
Beginner · Guided Project · Less Than 2 Hours
Skills you'll gain: Computer Security Incident Management, Incident Management, Incident Response, Security Management, Threat Management, Security Strategy, Event Monitoring, Security Information and Event Management (SIEM), Cyber Attacks, Continuous Monitoring, Enterprise Security, Security Awareness, Cyber Operations, Information Technology Operations, Automation, Systems Integration
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Windows Servers, Computer Security, Linux Administration, Contingency Planning, Disaster Recovery, Authorization (Computing), Linux, Linux Servers, Microsoft Windows, Authentications, Business Continuity Planning, OSI Models, User Accounts, Group Policy, Security Management, Microsoft Servers, Operating System Administration, Systems Administration, Virtualization, Cybersecurity
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Vulnerability Management, Vulnerability Assessments, Continuous Monitoring, Cloud Security, Threat Detection, Verification And Validation, Issue Tracking, Security Software, Data Pipelines, Data Import/Export
Intermediate · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Vendor Management, Security Awareness, Cyber Security Strategy, Risk Management, Threat Management, Security Controls, Human Factors (Security), Asset Protection, Cyber Risk, People Management, Due Diligence
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, IT Security Architecture, Identity and Access Management, Continuous Monitoring, Network Security, Computer Security Incident Management, Security Awareness, Information Systems Security, Security Information and Event Management (SIEM), Application Security, Disaster Recovery, Security Controls, Cloud Security, Infrastructure Security, Security Strategy, Data Security, Systems Architecture, Threat Detection, Cyber Governance
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Serverless Computing, Secure Coding, Risk Management Framework, Threat Modeling, Cloud Security, Infrastructure Security, Cloud Services, Web Applications, Cloud Platforms, Javascript, Node.JS, Amazon Web Services
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