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.

Infosec
Skills you'll gain: Secure Coding, Application Security, Exploitation techniques, Web Applications, Javascript, Web Development, Node.JS, Java Programming
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Linux Administration, Linux, Linux Servers, Ubuntu, Operating System Administration, Red Hat Enterprise Linux, Unix, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Network Administration, Software Installation, Package and Software Management, Authentications, Open Source Technology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Azure, Identity and Access Management, Network Security, Cloud Management, Cloud Security, 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, Threat Detection, Virtual Machines, Incident Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hardware Troubleshooting, Information Systems Security, Information Technology, Security Software, Malware Protection, Data Security, Encryption, Security Awareness, Endpoint Security, Authentications, Patch Management, Technical Support, Firewall, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Incident Management, IT Security Architecture, Security Architecture Review, Identity and Access Management, Continuous Monitoring, Network Security, Security Management, Security Awareness, Information Technology Architecture, Security Information and Event Management (SIEM), Application Security, Disaster Recovery, Security Controls, Cloud Security, Computer Security Awareness Training, Infrastructure Security, Threat Modeling, Cyber Security Policies, User Provisioning
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Mobile Security, Digital Forensics, Criminal Investigation and Forensics, Cyber Threat Intelligence, Cyber Security Strategy, Investigation, Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Mobile Development, Model Training, Cyber Security Policies, Artificial Intelligence and Machine Learning (AI/ML), Threat Modeling, Data Security, Cyber Governance, Endpoint Security, Machine Learning Methods, iOS Development, Application Security
Intermediate · Specialization · 3 - 6 Months

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

University of Colorado System
Skills you'll gain: Computer Security, OSI Models, IT Management, Systems Administration, Virtualization, Virtualization and Virtual Machines, Operating System Administration, Network Security, Information Systems Security, Enterprise Security, General Networking, Cybersecurity, Network Administration, Security Management, Computing Platforms, Network Infrastructure, Security Controls, Virtual Machines, Enterprise Architecture, Information Assurance
Beginner · Course · 1 - 3 Months

Skills you'll gain: Malware Protection, Computer Security Awareness Training, Cybersecurity, Security Awareness, Cyber Attacks, Data Loss Prevention, Data Security, Network Security, Human Factors (Security), Threat Detection, Security Controls, Email Security, Wireless Networks
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Dependency Analysis, Vulnerability Assessments, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

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

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, Network Security, Cybersecurity, Security Controls, IBM Cloud, Computing Platforms, Cloud Platforms, Cryptography, Advanced Encryption Standard (AES), Network Protocols, Market Opportunities, Automation, Emerging Technologies, Endpoint Security
Build toward a degree
Intermediate · Course · 1 - 3 Months