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 Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Security Controls, Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Cryptography, Web Applications, Wireless Networks
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Penetration Testing, Security Testing, Cybersecurity, Network Security, Vulnerability Scanning, Brute-force attacks, Server Side, TCP/IP, Network Monitoring, Vulnerability Assessments, Servers, Network Analysis, Network Protocols, Exploitation techniques, Program Development, Scripting
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Continuous Monitoring, Security Management, Security Strategy, Risk Management Framework, Cyber Risk, Threat Management, Cyber Security Strategy, Cloud Security, Computer Security Incident Management, Security Controls, Cyber Threat Intelligence, Incident Response, Risk Analysis, Cloud Standards, Scalability, Interoperability
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Threat Modeling, Security Controls, Key Management, Security Management, Cybersecurity, Cyber Attacks, Hardening, Cyber Security Assessment, Endpoint Security
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: digital literacy, Systems Design, Systems Development, Data Security, System Design and Implementation, Data Ethics, Cybersecurity, Information Technology, Information Privacy
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Computing Architecture, Cloud Security, Cloud Deployment, Cloud Computing, Incident Response, IT Security Architecture, Cloud Infrastructure, Cloud Solutions, Incident Management, Cloud Standards, Capacity Management, Application Security, Security Controls, Network Security, Data Security, Hardening, Scalability, Emerging Technologies, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Cyber Threat Intelligence, Threat Management, Threat Detection, Cybersecurity, Security Testing, IT Security Architecture, Cyber Security Assessment, Cyber Security Strategy, Security Strategy, Security Management, Cyber Risk, Risk Management Framework, Risk Management, Information Systems Security, Vulnerability Scanning, Vulnerability Assessments, Security Controls, Penetration Testing, Incident Response, Vendor Management
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Infrastructure As A Service (IaaS), Operating System Administration, Cloud Security, Cloud Infrastructure, Identity and Access Management, Cloud Services, AWS Identity and Access Management (IAM), Cloud Management, Cloud Computing, Incident Response, Cloud Platforms, Disaster Recovery, Cloud Computing Architecture, Cloud Applications, Microsoft Windows, Operating Systems, System Configuration, Firewall, Linux Administration, Risk Management
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Total Seminars
Skills you'll gain: Cryptographic Protocols, Public Key Infrastructure, Threat Detection, Cloud Security, IT Security Architecture, Network Security, Cryptography, Cloud Computing, Key Management, Cloud Infrastructure, Enterprise Architecture, Cloud Services, Encryption, Virtualization, Security Engineering, Security Management, Data Management, Security Software, Security Awareness, TCP/IP
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: AI Security, Penetration Testing, Exploit development, Network Security, Exploitation techniques, Open Web Application Security Project (OWASP), Cyber Security Assessment, Cyber Operations, Unix, Computer Security, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Cryptographic Protocols, Network Protocols, Cryptography, Security Awareness, Generative AI Agents, Server Side, Web Applications, Machine Learning Algorithms
Intermediate · Specialization · 3 - 6 Months
LearnQuest
Skills you'll gain: Blockchain, Key Management, Public Key Infrastructure, Security Controls, Cryptography, Cybersecurity, Data Security, Application Security, Network Security, Security Architecture Review, IT Security Architecture, Vulnerability Assessments, Encryption, Secure Coding, Cryptographic Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Public Key Cryptography Standards (PKCS), Security Testing, Vulnerability Management, Solution Design
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Application Security, Angular, OAuth, Test Driven Development (TDD), Web Components, Cryptography, Data Validation, Unit Testing, Vue.JS, Development Testing, Data Security, Authentications, Encryption, Authorization (Computing), HTML and CSS, Hypertext Markup Language (HTML), Web Applications, Javascript, Security Strategy, Computer Programming
Beginner · Specialization · 1 - 3 Months