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.

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Application Security, Web Applications, Javascript, Web Development, Node.JS, Web Servers, Hypertext Markup Language (HTML), Java Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Threat Modeling, Cryptography, Security Testing, Security Engineering, Threat Management, Cybersecurity, Network Security, Data Security, Vulnerability Assessments, Threat Detection, Information Systems Security, Cyber Security Strategy, Key Management, Encryption, Network Protocols, Regulatory Compliance, Scripting, Financial Regulation, Scalability
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Vendor Management, Security Management, Supplier Management, Risk Analysis, Security Awareness, Cyber Security Strategy, Risk Management, Threat Management, Human Factors (Security), Asset Protection, Due Diligence, Training Programs
Mixed · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Application Security, Open Web Application Security Project (OWASP), Secure Coding, Package and Software Management, Node.JS, Vulnerability Management, Javascript, Vulnerability Assessments
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptographic Protocols, Blockchain, Business Continuity, Disaster Recovery, Digital Assets, Vulnerability Assessments, Regulatory Compliance, Enterprise Security, Data Security, Law, Regulation, and Compliance, Encryption, Cybersecurity, Network Security, Emerging Technologies, Distributed Computing, Transaction Processing
Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Cloud Security, Amazon Web Services, Encryption, AWS Identity and Access Management (IAM), Amazon S3, Data Security, Cryptography, Personally Identifiable Information
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Windows Servers, Active Directory, Remote Access Systems, Virtual Private Networks (VPN), Network Security, Microsoft Azure, Dynamic Host Configuration Protocol (DHCP), Microsoft Windows, Hybrid Cloud Computing, Data Storage Technologies, Network Administration, Cloud Storage, Wide Area Networks, File Management, File Systems, TCP/IP, System Configuration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, User Accounts, Identity and Access Management, Authentications, Virtual Machines, Operating System Administration, Security Controls, System Configuration, Virtual Environment, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

NVIDIA
Skills you'll gain: OSI Models, TCP/IP, Data Centers, Network Protocols, Network Infrastructure, Local Area Networks, General Networking, Network Architecture, Computer Networking, Network Switches, System Requirements
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Prompt Engineering, ChatGPT, Open Web Application Security Project (OWASP), Responsible AI, Penetration Testing, Threat Modeling, Cyber Operations, Exploitation techniques, Vulnerability Scanning, Generative AI, Scripting
Beginner · Course · 1 - 3 Months

Skills you'll gain: PostgreSQL, Data Maintenance, Database Administration, Database Architecture and Administration, SQL, Secure Coding, Database Management, Relational Databases, Query Languages, Security Controls, Data Access, Data Security, Role-Based Access Control (RBAC), Threat Detection
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Salesforce, Authentications, Salesforce Development, Role-Based Access Control (RBAC), Identity and Access Management, Security Controls, Data Security, Authorization (Computing), Event Monitoring, Application Security, Data Sharing, Security Information and Event Management (SIEM), Responsive Web Design, User Accounts, Mobile Development, User Interface (UI)
Intermediate · Course · 1 - 4 Weeks