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: General Networking, Network Architecture, Threat Management, Cybersecurity, Networking Hardware, Information Technology, Computer Networking, Network Security, Threat Detection, Network Routers, Security Controls, Cyber Attacks, Network Switches, Diagram Design, Firewall, Security Software, Security Strategy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Remote Access Systems, Threat Management, Threat Detection, Information Technology Operations, Wireless Networks, Network Security, Mobile Security, Information Systems Security, Security Controls, Virtual Private Networks (VPN), General Networking, Network Administration, Network Troubleshooting, Document Management, Malware Protection, Augmented and Virtual Reality (AR/VR), Emerging Technologies, Change Control, Multi-Factor Authentication, System Configuration
Advanced · Course · 1 - 3 Months

Skills you'll gain: Vulnerability Assessments, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Malware Protection, Penetration Testing, Cyber Threat Intelligence, Exploitation techniques, Threat Management, Brute-force attacks, Network Security, Information Systems Security, Security Awareness, Human Factors (Security), Authentications, Network Protocols
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Public Key Infrastructure, Cybersecurity, Information Systems Security, Data Security, Cyber Attacks, Information Assurance, Network Security, Risk Management Framework, Security Controls, Cryptography, Cryptographic Protocols, Key Management, Security Engineering, Threat Modeling, Security Management, Authorization (Computing), Encryption, Email Security, Data Integrity, Authentications
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: OSI Models, Network Troubleshooting, Network Administration, General Networking, Network Monitoring, Network Infrastructure, Network Security, TCP/IP, Virtual Networking, Local Area Networks, Routing Protocols, Network Routing, Virtual Local Area Network (VLAN), Wireless Networks, Networking Hardware, Disaster Recovery, Network Protocols, Network Switches, Cloud Services
Mixed · Course · 1 - 3 Months

The University of Chicago
Skills you'll gain: Software-Defined Networking, Virtual Networking, Software-Defined Data Center (SDDC), Computer Networking, Virtualization, Network Architecture, Network Administration, Network Switches, Network Routing, Network Security, Network Protocols, Hardware Architecture, Application Programming Interface (API), Verification And Validation
Mixed · Course · 1 - 3 Months

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Cyber Attacks, Vulnerability Assessments, Hardware Architecture, Information Systems Security, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, VPN Clients, Systems Architecture, Authentications
Beginner · Course · 1 - 4 Weeks

Ball State University
Skills you'll gain: Cryptography, Application Security, Encryption, Authentications, Cybersecurity, Cryptographic Protocols, Data Encryption Standard, Advanced Encryption Standard (AES), Email Security, Network Security, Information Systems Security, Secure Coding, Key Management, Application Development, Public Key Cryptography Standards (PKCS), Public Key Infrastructure, Multi-Factor Authentication, Network Protocols, Data Integrity
Build toward a degree
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Authentications, Threat Detection, Multi-Factor Authentication, Cyber Security Strategy, Cybersecurity, Malware Protection, Data Loss Prevention, Endpoint Security, Disaster Recovery, Security Awareness, Data Security, Human Factors (Security), Email Security, Information Privacy, Network Security, Cyber Security Assessment, Patch Management
Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Vulnerability Management, Penetration Testing, Vulnerability Scanning, Vulnerability Assessments, Intrusion Detection and Prevention, Security Testing, Network Security, Threat Management, Cyber Security Assessment, System Testing, Security Strategy, Firewall, Cybersecurity, Cloud Security, Exploitation techniques, Microsoft Azure, Virtual Private Networks (VPN), Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Security Testing, Exploitation techniques, Hardening, Vulnerability Assessments, Intrusion Detection and Prevention, Brute-force attacks, Application Security, Network Security, Virtual Local Area Network (VLAN), Business Logic, Cloud Security, API Testing, Wireless Networks, Data Persistence, Application Programming Interface (API)
Advanced · Course · 1 - 4 Weeks

Minnesota State University, Mankato
Skills you'll gain: Payment Processing, Payment Card Industry (PCI) Data Security Standards, Payment Systems, Credit/Debit Card Processing, Merchant Services, Cybersecurity, Disaster Recovery, Network Security, Cyber Risk, Security Awareness, Cyber Security Strategy, Information Systems Security, User Accounts, Infrastructure Security, Network Routers, Wireless Networks, System Configuration, Endpoint Security, Computer Security, Computer Security Incident Management
Beginner · Course · 1 - 4 Weeks