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 Maryland, College Park
Skills you'll gain: Sampling (Statistics), Data Analysis Software, Stata, Statistical Analysis, Statistical Software, Statistical Methods, Regression Analysis, Data Integrity, R (Software), R Programming, Statistical Modeling
Mixed · Course · 1 - 3 Months

Skills you'll gain: Infrastructure as Code (IaC), Amazon Web Services, AWS Identity and Access Management (IAM), Data Integration, IT Automation, Cloud Security, Billing, Billing Systems, Expense Management, Cloud-Based Integration, Security Controls, Cost Management, Cloud Solutions, Technical Support, Cloud Services, Technical Support and Services, Regulatory Compliance, Cloud Standards, System Support, Network Troubleshooting
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Exploitation techniques, Scenario Testing, Cybersecurity, Vulnerability Assessments, Linux Servers, Linux, Operating System Administration, Command-Line Interface, Linux Commands, Cryptography, File Management, Microsoft Windows
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Build Tools, Authorization (Computing), Data Validation
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ESXi Installation, vSphere Networking and Storage, Virtual Networking, vCenter Server Management, Role-Based Access Control (RBAC), vCenter Server, VMware ESX Servers, iSCSI Configuration, Event Monitoring, Data Centers, Virtual Machines, Network Switches, Authorization (Computing), Virtualization, System Monitoring, Data Storage
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Virtual Machines, Firewall, Cloud Deployment, Cloud Computing, Virtual Networking, Network Troubleshooting, Google Cloud Platform, Network Administration, Command-Line Interface, General Networking, Network Security, Security Controls, Kubernetes
Beginner · Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Blockchain, Cryptography, Encryption, Key Management, Cryptographic Protocols, Data Security, Quantum computing, Information Privacy, Algorithms
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hootsuite, Social Media Content, Content Scheduling, Social Media Management, Content Creation, Social Media Analytics, Social Media Marketing, Social Media, Social Media Strategy, Digital Marketing Tools, Content Marketing, Resource Utilization, Content Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Recurrent Neural Networks (RNNs), PyTorch (Machine Learning Library), Model Optimization, Large Language Modeling, Text Mining, Artificial Neural Networks, Natural Language Processing, Classification Algorithms, Model Training, Deep Learning, Machine Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Identity and Access Management, Cloud Hosting, Cloud Infrastructure, Cloud Services, Cloud Solutions, User Provisioning, Authorization (Computing), Web Servers, Role-Based Access Control (RBAC), Cloud Storage, Database Management Systems, Databases, Database Management, Scalability, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Loss Prevention, AI Security, Gemini, Google Gemini, Generative AI, Personally Identifiable Information, Cloud API, Jupyter, Responsible AI, Google Cloud Platform, Cloud Security
Intermediate · Project · Less Than 2 Hours

Simplilearn
Skills you'll gain: Encryption, Cryptography, Data Security, Cybersecurity
Beginner · Course · 1 - 4 Weeks