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 Pennsylvania
Skills you'll gain: Social Network Analysis, Content Marketing, Social Media Marketing, Social Media, Consumer Behaviour, Marketing Communications, Influencing, Persuasive Communication, Advertising, Marketing, Marketing Psychology, Brand Strategy, Storytelling
Mixed · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Model Based Systems Engineering, Peer Review, Programmable Logic Controllers, Systems Engineering, Product Lifecycle Management, Intrusion Detection and Prevention, Security Controls, Performance Measurement, Collaborative Software, Control Systems, Continuous Monitoring, Anomaly Detection, Machine Controls, Incident Response, Digital Transformation, Vulnerability Assessments, Software Development Life Cycle, Production Process, Cybersecurity, Manufacturing Operations
Beginner · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Unsupervised Learning, Data Ethics, Machine Learning, Supervised Learning, Artificial Intelligence, Reinforcement Learning, Artificial Neural Networks, Deep Learning, Anomaly Detection, Dimensionality Reduction, Algorithms
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Storage, Hybrid Cloud Computing, Cloud Security, Virtual Networking, Multi-Cloud, Business Continuity, Disaster Recovery, Data Governance, Virtual Private Networks (VPN), Load Balancing, Database Management, IBM Cloud, Architectural Design, Planning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IT Infrastructure, Operating System Administration, Computer Networking, Desktop Support, Systems Administration, Network Troubleshooting, Remote Access Systems, Network Security, OSI Models, Hardening, Package and Software Management, Cybersecurity, Disaster Recovery, User Accounts, File Systems, Security Controls, TCP/IP, Computer Hardware, Technical Support, Software Installation
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: vSphere Networking and Storage, Virtual Networking, VMware ESX Servers, vCenter Server, Virtual Machines, Virtualization, Infrastructure Security, Hardening, Role-Based Access Control (RBAC), Data Storage, Identity and Access Management, Windows PowerShell, Encryption, Computer Networking
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Billing Systems, Registration, Invoicing, Restaurant Management, Microsoft Visual Studio, Security Testing, Order Management, Scalability
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Oracle SQL Developer, Oracle Databases, PL/SQL, Database Design, SQL, Database Architecture and Administration, Stored Procedure, Database Management, Data Management, Network Architecture, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Penetration Testing, Security Testing, System Testing, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Cloud Security, Vulnerability Assessments, Intrusion Detection and Prevention, Network Security, Exploitation techniques, Microsoft Azure, Firewall, Virtual Private Networks (VPN)
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Kubernetes, Application Deployment, Cloud Deployment, Containerization, Authentications, Authorization (Computing), Cloud-Native Computing, Cloud Infrastructure, Microservices, Infrastructure Architecture, Cloud Computing Architecture, Data Persistence, Software Architecture, Scalability, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Security Controls, Governance Risk Management and Compliance, Risk Management, Business Risk Management, Compliance Management, Compliance Auditing, Enterprise Risk Management (ERM), Data Security, Information Privacy, Continuous Monitoring, Auditing, Information Systems Security, Regulatory Compliance, Verification And Validation, Risk Analysis, Document Management, Scope Management, Asset Protection
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Unix Commands, Biostatistics, Exploratory Data Analysis, Statistical Analysis, Unix, Data Science, Data Management, Statistical Methods, Command-Line Interface, Statistical Hypothesis Testing, Linux Commands, Data Analysis Software, Data Quality, Data Structures, Data Analysis, Computer Science, Molecular Biology, R Programming, Python Programming
Intermediate · Specialization · 3 - 6 Months