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: Cybersecurity, Security Strategy, Cyber Attacks, Cyber Governance, Security Management, Security Awareness, Human Factors (Security), Threat Management, Data Security, Cloud Security, Innovation, Decision Making, Risk Management
Beginner · Course · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: Network Monitoring, Network Planning And Design
Beginner · Course · 1 - 3 Months
Skills you'll gain: Vulnerability Scanning, Digital Forensics, Linux, Linux Administration, Network Security, Authorization (Computing), Role-Based Access Control (RBAC), Identity and Access Management, Linux Commands, Network Monitoring, System Monitoring, Hardening, Information Systems Security, Security Controls, Wireless Networks, Penetration Testing, Cybersecurity, Containerization, File Management, Incident Response
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IT Security Architecture, Security Controls, Cryptography, Security Engineering, Application Security, Vulnerability Assessments, Information Systems Security, Cryptographic Protocols, Vulnerability Management, Encryption, Cybersecurity, Infrastructure Security, Computer Security, Public Key Infrastructure, Cyber Security Assessment, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Preprocessing, Deep Learning, Data Processing, Artificial Neural Networks, Logistic Regression, Applied Machine Learning, Program Development, Python Programming, Network Architecture, Model Training, Model Optimization, Machine Learning Algorithms, NumPy, Pandas (Python Package), Linear Algebra
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Infrastructure As A Service (IaaS), Operating System Administration, Cloud Security, Cloud Infrastructure, Identity and Access Management, Cloud Services, AWS Identity and Access Management (IAM), Cloud Management, Cloud Computing, Incident Response, Cloud Platforms, Disaster Recovery, Cloud Computing Architecture, Cloud Applications, Microsoft Windows, Operating Systems, System Configuration, Firewall, Linux Administration, Risk Management
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: Shell Script, Unix Shell, Bash (Scripting Language), Vulnerability Assessments, Linux, Linux Commands, Vulnerability Scanning, Linux Administration, System Monitoring, Continuous Monitoring, Security Testing, Scripting Languages, Security Management, Security Requirements Analysis, Computer Security Incident Management, Unix Commands, Scripting, Software Development Tools, Cyber Security Policies, Operating System Administration
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Role-Based Access Control (RBAC), Authentications, Secure Coding, Data Security, Microsoft Copilot, ASP.NET, Encryption, Back-End Web Development, Data Encryption Standard, Authorization (Computing), Data Storage, Identity and Access Management, JSON, Application Security, Application Programming Interface (API), Debugging
Beginner · Course · 1 - 4 Weeks

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

AI CERTs
Skills you'll gain: System Monitoring, Continuous Monitoring, Infrastructure Security, Cryptographic Protocols, Security Controls
Beginner · 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

Skills you'll gain: Windows Servers, Active Directory, Remote Access Systems, Microsoft Servers, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Dynamic Host Configuration Protocol (DHCP), Hybrid Cloud Computing, Data Storage Technologies, Azure Active Directory, Data Storage, Network Infrastructure, Virtual Networking, Cloud Storage, Wide Area Networks, File Management, Network Support, File Systems, Network Troubleshooting
Intermediate · Course · 1 - 4 Weeks