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.

New York University
Skills you'll gain: Authentications, Public Key Infrastructure, Cryptography, Data Encryption Standard, Computer Security, Cybersecurity, Network Security, Security Controls, Encryption, Multi-Factor Authentication
Intermediate · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Medical Privacy, Health Informatics, Health Information Management, Data Governance, Health Care, Health Technology, Data Quality, Medical Records, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Health Policy, Interoperability, Data Ethics, Data Sharing, Telehealth, Regulatory Compliance, Data Security, Responsible AI, General Data Protection Regulation (GDPR), Health Equity, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Skills you'll gain: Database Management, Databases, Relational Databases, Database Architecture and Administration, Data Security, User Accounts, Secure Coding, SQL, Application Security, Vulnerability Scanning, NoSQL, Role-Based Access Control (RBAC), Encryption, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Intrusion Detection and Prevention, Cybersecurity, Cyber Threat Intelligence, Security Controls, Threat Modeling, Incident Response, Digital Forensics, Risk Management Framework, Network Security, Data Security, Network Analysis, Firewall
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Local Area Networks, Network Protocols, Computer Networking, TCP/IP, Network Performance Management, OSI Models, Wireless Networks, Telecommunications, Network Analysis, Data Integrity
Mixed · Course · 1 - 3 Months

Skills you'll gain: Human Machine Interfaces, Network Protocols, Internet Of Things, Communication Systems, System Configuration, Remote Access Systems, Automation, Web Servers, Scripting, System Monitoring, Systems Integration, Algorithms, Data Structures, Debugging
Advanced · Course · 3 - 6 Months

Skills you'll gain: Threat Modeling, Security Controls, Incident Response, Computer Security Incident Management, Intrusion Detection and Prevention, Vulnerability Management, Cybersecurity, Hardening, Network Security, Stakeholder Communications, Vulnerability Assessments, Relational Databases, Security Information and Event Management (SIEM), TCP/IP, Bash (Scripting Language), Data Security, Cloud Security, Network Architecture, Debugging, Information Systems Security Assessment Framework (ISSAF)
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Peripheral Devices, Computer Hardware, System Configuration, Virtualization and Virtual Machines, Computer Systems, Virtual Machines, Operating Systems, USB, Hardware Troubleshooting, Computer Displays, Linux, Software Installation, Technical Support, Mac OS, Computer Architecture, File Systems, Network Infrastructure, Data Storage, User Accounts, Disaster Recovery
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Cyber Threat Hunting, Threat Detection, Endpoint Detection and Response, Cyber Security Strategy, System Monitoring, Cybersecurity, Continuous Monitoring, Network Security, Network Monitoring, Python Programming, Anomaly Detection, Scripting, Scripting Languages
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Flask (Web Framework), Application Deployment, Web Applications, Python Programming, AI Enablement, Server Side, Artificial Intelligence, Code Review, Debugging, Integrated Development Environments, Programming Principles, Unit Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cloud Computing, Network Monitoring, Command-Line Interface, Cloud Services, General Networking, Linux, Windows PowerShell, Virtual Machines
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: AI Enablement, AI Workflows, Law, Regulation, and Compliance
Intermediate · Course · 3 - 6 Months