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.

University of California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Open Web Application Security Project (OWASP), Encryption, Application Security, Penetration Testing, Data Security, Exploitation techniques, Security Controls, Authentications, Vulnerability Management, Advanced Encryption Standard (AES), Personally Identifiable Information, Data Flow Diagrams (DFDs)
★ 4.6 (180) · Intermediate · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Data Encryption Standard, Threat Management, Cyber Risk, IT Security Architecture, Mobile Security, Enterprise Security, Cyber Security Assessment
★ 4.7 (3.7K) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Open Web Application Security Project (OWASP), Penetration Testing, Metasploit, Security Testing, Security Strategy, Vulnerability Assessments, Cyber Security Assessment, Security Management, Vulnerability Scanning, Cyber Threat Intelligence, Information Systems Security, Exploitation techniques, Security Controls, Data Sharing
★ 4.7 (268) · Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Social Network Analysis, Social Media Analytics, Data Analysis, Python Programming, Model Evaluation
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Amazon Web Services, Virtual Networking, Network Infrastructure, Network Architecture, AWS CloudFormation, Network Routing, Amazon Elastic Compute Cloud, IT Automation, Infrastructure as Code (IaC), Network Security, Cloud-Based Integration, Load Balancing, Cloud Services, Automation, Cloud Deployment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, File Systems, Microsoft Windows, Desktop Support, Interoperability, Linux Administration, Unix, System Configuration, Knowledge of Apple Software, Computing Platforms, Ubuntu, Systems Administration, Operating Systems, Mac OS, System Support, Software Installation, File Management, Security Controls, Network Security, Data Security
Beginner · Course · 1 - 3 Months
Skills you'll gain: Endpoint Security, Infrastructure Security, Security Management, Network Security, Cyber Security Policies, Security Controls, Data Security, Computer Security, Security Strategy, Application Security, IT Infrastructure, Data Integrity
★ 5 (10) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Secure Coding, Cryptography, Application Security, Web Applications, Javascript, Identity and Access Management, Node.JS, Security Awareness
★ 4.5 (70) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Secure Coding, ASP.NET, Role-Based Access Control (RBAC), Authentications, Data Security, Microsoft Copilot, Encryption, Authorization (Computing), Identity and Access Management, Back-End Web Development, Debugging, Application Security, Data Storage, Cryptography, Application Programming Interface (API), User Accounts
★ 4.2 (18) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Application Security, Patch Management, Data Security, Information Systems Security, Cloud Security, Cybersecurity, Endpoint Security, Cyber Attacks, Internet Of Things, Mobile Security, Hardening, Personally Identifiable Information, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Vulnerability Management, Data Storage, Operating Systems, Cloud Services, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Architecture, Cloud Computing Architecture, Virtual Networking, Cloud Infrastructure, Network Infrastructure, Cloud Platforms, Software-Defined Networking, Cloud Engineering, Cloud-Native Computing, Cloud Solutions, Network Planning And Design, Computing Platforms, Code Reusability, Hardware Architecture, Networking Hardware, Risk Management Framework, Interoperability, System Configuration, Digital Transformation
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Prompt Engineering, Google Gemini, Gemini, Google Cloud Platform, Network Planning And Design, Virtual Networking, Cloud Management, Network Engineering
Beginner · Course · 1 - 4 Weeks