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.

CertNexus
Skills you'll gain: Application Security, Threat Modeling, Human Factors (Security), Secure Coding, Open Web Application Security Project (OWASP), Vulnerability, Computer Security, Vulnerability Management, Vulnerability Assessments, Data Security, Security Strategy, Security Controls, Cyber Security Strategy, Computer Programming, Design, Python Programming, Javascript, Design Strategies, JavaScript Frameworks, Node.JS
Mixed · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Data Security, Cyber Security Strategy, Vulnerability Assessments, Security Management, Threat Detection, Information Systems Security, Hardening, Security Strategy, Security Controls, Security Software, Network Security, Vulnerability Management, Identity and Access Management, Email Security, Security Awareness, Encryption, Risk Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptography, Encryption, Risk Management Framework, Multi-Factor Authentication, Cyber Attacks, Cybersecurity, Identity and Access Management, Authentications, Security Controls, Threat Management, Data Security, Information Privacy, Cyber Risk, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Network Architecture, Virtual Local Area Network (VLAN), Virtual Private Networks (VPN), Network Administration, Network Security, Network Monitoring, Local Area Networks, Networking Hardware, Network Routers, General Networking, Network Planning And Design, Network Switches, Computer Networking, System Configuration, Routing Protocols, Wireless Networks, Network Performance Management, Network Routing, Dynamic Host Configuration Protocol (DHCP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Azure Active Directory, Endpoint Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Secure Coding, Threat Detection, Penetration Testing, Cloud Security, Exploitation techniques, Cyber Security Assessment, Vulnerability Scanning, Security Testing, Application Security, Incident Response, Cybersecurity, Vulnerability Assessments, Python Programming, Web Scraping, Encryption, Automation
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Data Security, Personally Identifiable Information, Information Assurance, Data Governance, Data Loss Prevention, Data Management, Data Integrity, Threat Management, Data Storage, Security Controls, Threat Detection, Encryption, Identity and Access Management
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Responsible AI, Large Language Modeling, Generative Model Architectures, Prompt Patterns, IT Security Architecture, Threat Modeling, Vulnerability Assessments, Threat Detection, Cybersecurity, Information Systems Security, Cyber Threat Intelligence, Cyber Security Strategy, Security Strategy, Security Management, Cyber Attacks, Cloud Security, Security Awareness, Enterprise Security, Distributed Denial-Of-Service (DDoS) Attacks
Beginner · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: SQL, Database Architecture and Administration, Transaction Processing, Database Application, Database Management, Data Access, Relational Databases, Database Development, Data Manipulation, Database Administration, Database Theory, Databases, Data Transformation, Database Management Systems, Data Security, Identity and Access Management, Data Management, Data Integrity, Performance Tuning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Virtual Networking, Role-Based Access Control (RBAC), Data Persistence, Cloud Management, Continuous Deployment, Application Lifecycle Management, Cloud Deployment, Proxy Servers, Capacity Management, Application Deployment, Network Monitoring, CI/CD, Key Management, Software Versioning, Network Security, API Gateway, Identity and Access Management, Model Deployment, Security Controls, Disaster Recovery
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Risk Management, Risk Analysis, Risk Management Framework, Risk Modeling, Security Management, Risk Appetite, Business Risk Management, Cyber Risk, Risk Mitigation, Threat Management, Enterprise Risk Management (ERM), Risk Control, Vulnerability Assessments, Threat Modeling, Vulnerability Management, Threat Detection, Security Controls, Stakeholder Communications, Vulnerability, Stakeholder Engagement
Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Management, Security Controls, Asset Management, Security Strategy, IT Management, Program Management, Security Awareness, Computer Security Awareness Training, Cyber Security Strategy, IT Security Architecture, Information Management, Technology Roadmaps, Cyber Security Policies, Continuous Monitoring, Cybersecurity, Enterprise Security, Program Development, Vendor Management, Quality Management, Continuous Improvement Process
Mixed · Course · 1 - 3 Months