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 San Diego
Skills you'll gain: Big Data, Cybersecurity, Pedagogy, Data Security, Cryptography, Information Privacy, Encryption, Responsible AI, AI Personalization, Computer Science, Information Technology, Web Applications, Web Servers, Machine Learning, Supervised Learning
Beginner · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Blockchain, FinTech, Cryptography, Digital Assets, Payment Systems, Distributed Computing, Identity and Access Management, Web Applications, Transaction Processing, Emerging Technologies, Scalability, Technical Standard
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Safety, Maintenance, Repair, and Facility Services, Safety Standards, Hardware Troubleshooting, Test Equipment, Electrical Systems, Basic Electrical Systems, High Voltage, Safety and Security, End User Training and Support, Sustainable Technologies, Transportation Operations, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: vSphere Networking and Storage, vSphere DRS & HA, Cloud Infrastructure, VMware vSAN, vCenter Server, Storage vMotion, Virtual Networking, Virtualization, Software-Defined Data Center (SDDC), Virtual Machines, iSCSI Configuration, vCenter Server Management, Virtualization and Virtual Machines, Cloud Computing, Containerization, Network Administration, Servers, Data Storage Technologies, Network Security, Capacity Management
Intermediate · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Incident Response, Risk Management Framework, Cyber Risk, Risk Management, Security Management, Enterprise Risk Management (ERM), Business Risk Management, Cyber Threat Intelligence, Governance Risk Management and Compliance, Continuous Monitoring, Cyber Security Strategy, Security Information and Event Management (SIEM), Threat Detection, ISO/IEC 27001, Control Objectives for Information and Related Technology (COBIT), Key Performance Indicators (KPIs)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Security Testing, Penetration Testing, Open Web Application Security Project (OWASP), Application Security, Exploitation techniques, Vulnerability Assessments, Test Tools, Web Applications, SQL, Databases
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: AI Security, Retrieval-Augmented Generation, AI Orchestration, Responsible AI, LangChain, Threat Modeling, Generative AI, Vector Databases, Embeddings, Secure Coding, Large Language Modeling, Open Web Application Security Project (OWASP), Threat Management, Security Testing, Security Controls, Prompt Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Oracle Cloud, Oracle Databases, Multi-Cloud, Microsoft Azure, Cloud Computing Architecture, Identity and Access Management, Google Cloud Platform, Database Architecture and Administration, Virtual Networking, Network Routing
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Target Audience, Social Media Marketing, Social Media Campaigns, Online Advertising, Social Media, Web Analytics
Beginner · Guided Project · Less Than 2 Hours

Whizlabs
Skills you'll gain: Amazon Web Services, Containerization, Docker (Software), Kubernetes, Application Deployment, Cloud Deployment, CI/CD, Cloud Security, Hybrid Cloud Computing, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Email Automation, Agentic Workflows, AI Workflows, Multimodal Prompts, Tool Calling, Calendar Management, Machine Learning Methods, Scheduling, AI Security, Text Mining, Classification Algorithms, JSON
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: AI Personalization, Video Production, Photo/Video Production and Technology, Media Production, Image Analysis, Videography, AI Security, Storytelling, Video Editing, Data Storytelling, Generative AI, Artificial Intelligence, Real Time Data, Image Quality, Responsible AI, Deep Learning, Natural Language Processing, Editing
Intermediate · Course · 1 - 3 Months