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: Metasploit, Exploitation techniques, Penetration Testing, Database Management, Cryptography, Data Import/Export, Public Key Infrastructure, MySQL, Vulnerability Scanning, Encryption, Vulnerability Assessments, Cybersecurity, Data Encryption Standard, SQL, PostgreSQL, Command-Line Interface
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Cybersecurity, TCP/IP, Network Protocols, Data Security, Litigation Support, Network Security, General Networking, Record Keeping, Data Storage, Data Integrity, Cryptography, File Management, File Systems, Encryption, Data Validation, Command-Line Interface, Technical Writing, Linux Commands, Unix Commands, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Vulnerability Assessments, Cybersecurity, Cyber Threat Intelligence, Cyber Attacks, Security Management, Cyber Threat Hunting, Information Systems Security, Threat Detection, Data Security, Network Security, Application Security, Cyber Security Strategy, DevSecOps, Malware Protection, Cloud Security, Cyber Security Assessment, Risk Management Framework, Encryption, Authentications
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Keras (Neural Network Library), Image Analysis, Computer Vision, Deep Learning, Tensorflow, Google Cloud Platform, Applied Machine Learning, Machine Learning Methods, Data Processing, Visualization (Computer Graphics)
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Cyber Threat Hunting, Cyber Threat Intelligence, Threat Detection, Threat Management, Threat Modeling, MITRE ATT&CK Framework, Endpoint Detection and Response, Intrusion Detection and Prevention, Security Information and Event Management (SIEM), Anomaly Detection, Generative AI, Endpoint Security, Event Monitoring, System Monitoring, Network Analysis, Linux
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Cybersecurity, Business Continuity, Threat Detection, Endpoint Security, Disaster Recovery, Cyber Security Policies, Incident Response, Vulnerability Assessments, Network Security, Application Security, Governance Risk Management and Compliance, Cloud Security, Risk Management
Beginner · Course · 1 - 3 Months

Yonsei University
Skills you'll gain: Wireless Networks, Communication Systems, Telecommunications, System Design and Implementation, Network Performance Management, Network Protocols, Emerging Technologies
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Threat Modeling, IT Security Architecture, Threat Detection, Internet Of Things, Network Security, Information Systems Security, Infrastructure Security, Security Controls, Data Security, Vulnerability Assessments, Risk Management Framework, Cryptography, Encryption, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Docker (Software), Cloud-Native Computing, Containerization, Application Deployment, Devops Tools, Data Storage, Microservices, DevOps, Data Storage Technologies, Security Controls, CI/CD, Authentications, Network Model, YAML, Network Planning And Design, Local Area Networks, Scalability, File Systems
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Network Infrastructure, Network Routers, Network Switches, Network Architecture, Internet Of Things, General Networking, Infrastructure Security, Wireless Networks, Network Security, Cloud-Based Integration, System Implementation, Cloud Computing, System Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Disaster Recovery, Computer Security Incident Management, Business Continuity, Security Management, Cybersecurity, Investigation, Threat Detection, Risk Management
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Incident Response, Computer Security Incident Management, Endpoint Detection and Response, Cyber Operations, Cybersecurity, Cyber Threat Hunting, Intrusion Detection and Prevention, Security Management, Disaster Recovery
Beginner · Course · 1 - 4 Weeks