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: Incident Response, Computer Security Incident Management, Security Management, Incident Management, Cyber Risk, Regulatory Compliance, Compliance Management, Information Systems Security, Cyber Security Strategy, Cybersecurity, Enterprise Security, Federal Information Security Management Act, Law, Regulation, and Compliance, Regulation and Legal Compliance, Payment Card Industry (PCI) Data Security Standards, Computer Security, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Network Security, Sarbanes Oxley Act (SOX) Compliance, General Data Protection Regulation (GDPR)
Mixed · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Cyber Security Strategy, Data Security, Cyber Threat Intelligence, Computer Security Awareness Training, Zero Trust Network Access, Information Systems Security, Security Awareness, Security Engineering, Threat Detection, Human Factors (Security), Cultural Sensitivity, Security Controls, Incident Response, Proactivity, Fraud detection, Information Technology
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: AI Personalization, Business Logic, Application Development, C# (Programming Language), Computer Programming, Programming Principles, Data Structures, Debugging
Beginner · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Virtual Private Networks (VPN), Firewall, Session Initiation Protocols, Remote Access Systems, Network Security, Network Architecture, Network Routing, Interoperability, Network Protocols, Telecommunications, Encryption, Communication Systems, Infrastructure Architecture, Scalability
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Open Web Application Security Project (OWASP), Incident Response, Penetration Testing, Computer Security Incident Management, Metasploit, Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Threat Management, Data Security, Authentications, Cyber Attacks, Security Testing, Cloud Security, Security Strategy, Computer Security Awareness Training, Risk Management, Security Awareness, Enterprise Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Digital Forensics, Incident Response, Penetration Testing, Computer Security Incident Management, Cybersecurity, Security Management, Threat Detection, Cyber Security Assessment, Vulnerability Assessments, Threat Management, Malware Protection, Email Security, AI Security, Exploitation techniques, Network Security, Payment Card Industry (PCI) Data Security Standards
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Identity and Access Management, Endpoint Security, Network Security, Cybersecurity, Threat Detection, Cyber Attacks, Data Security, Cyber Security Strategy, Secure Coding, Firewall, Application Security, Authentications, Infrastructure Security, Security Controls, Authorization (Computing), Security Information and Event Management (SIEM), Data Governance, Security Testing, Virtual Private Networks (VPN)
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Governance, Role-Based Access Control (RBAC), Responsible AI, Governance, Data Management, Generative AI, Metadata Management, AI Security, Data Quality, Data Access, Identity and Access Management, Benchmarking, Data Security, SQL, Quality Assurance and Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Threat Detection, Cyber Security Strategy, Cyber Threat Intelligence, Cybersecurity, Interactive Data Visualization, Geospatial Information and Technology, Web Scraping, Digital Forensics, IT Automation, Data Security, Security Awareness, Personally Identifiable Information, Network Security, Scripting, Network Analysis, Open Source Technology, Data Analysis Software, Information Privacy
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Application Security, Incident Response, Intrusion Detection and Prevention, Network Security, Cybersecurity, Cyber Security Strategy, Cyber Attacks, Data Security, Hardening, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Management, Vulnerability Assessments, Multi-Factor Authentication, System Configuration, Scripting, Linux Commands, Bash (Scripting Language), Linux, Scripting Languages, Python Programming
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Threat Detection, Penetration Testing, Exploit development, Cyber Threat Intelligence, Threat Management, Incident Response, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, Cybersecurity, Network Security, Vulnerability Management, Network Monitoring, Bash (Scripting Language), Intrusion Detection and Prevention, Network Troubleshooting, Anomaly Detection, Information Systems Security, Cyber Security Policies, Network Analysis
Intermediate · Professional Certificate · 3 - 6 Months

Yonsei University
Skills you'll gain: TCP/IP, Network Protocols, Open Shortest Path First (OSPF), Network Routing, Cybersecurity, Network Security, General Networking, Intrusion Detection and Prevention, File Transfer Protocol (FTP), Dynamic Host Configuration Protocol (DHCP), Network Architecture, System Configuration, Network Analysis
Beginner · Course · 1 - 3 Months