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: Application Security, Secure Coding, Vulnerability Assessments, Security Software, Security Testing, Cybersecurity, Collaborative Software, Threat Modeling, Debugging, Systems Design
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Bash (Scripting Language), Scalability, Distributed Computing, Computer Systems, Big Data, Operating Systems, File Systems, Linux, Scripting, Command-Line Interface, Performance Tuning, Programming Principles
Build toward a degree
Beginner · Course · 1 - 4 Weeks

IIT Bombay
Skills you'll gain: Internet Of Things, Network Protocols, Wireless Networks, Emerging Technologies, Data Analysis, Communication Systems, Digital Signal Processing, Scikit Learn (Machine Learning Library), Regression Analysis, Pandas (Python Package), Unsupervised Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), Vulnerability Assessments, Application Security, Vulnerability Management, Secure Coding, Hardening, Security Controls, Cybersecurity, Authorization (Computing), Cryptography, System Configuration, Encryption
Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Virtual Local Area Network (VLAN), Network Security, Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Architecture, TCP/IP, Routing Protocols, Network Switches, Network Routing, Open Shortest Path First (OSPF), Wireless Networks, Ansible, General Networking, Network Infrastructure, Software-Defined Networking, Computer Networking, OSI Models, Local Area Networks, Network Planning And Design, Virtual Private Networks (VPN)
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Threat Modeling, Security Controls, Incident Response, Computer Security Incident Management, Intrusion Detection and Prevention, Vulnerability Management, Cybersecurity, Hardening, Network Security, Stakeholder Communications, Vulnerability Assessments, Relational Databases, Security Information and Event Management (SIEM), TCP/IP, Data Security, Cloud Security, Network Architecture, Linux, Debugging, Cyber Risk
Beginner · Professional Certificate · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Amazon Web Services, Cloud Infrastructure, Customer Analysis, Network Troubleshooting, Technical Consulting, Amazon S3, Cloud Computing, Technical Support, AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Requirements Analysis, Root Cause Analysis, Scenario Testing, System Support, Virtual Networking, Customer Support, Cloud Storage, Serverless Computing, System Monitoring, Data Security
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Natural Language Processing, Transfer Learning, Tensorflow, Google Cloud Platform, Recurrent Neural Networks (RNNs), Embeddings, Deep Learning, AI Workflows, Artificial Neural Networks, Feature Engineering, Model Evaluation
Advanced · Course · 1 - 3 Months

Starweaver
Skills you'll gain: Revenue Management, Customer experience strategy (CX), Service Design, Design Thinking, Change Management, Hospitality Services, Capital Expenditure, Social Media Campaigns, Financial Statement Analysis, Cost Control, Social Media Marketing, Hospitality Management, Financial Forecasting, Finance, Operations Management, Prototyping, Strategic Planning, Capital Budgeting, Search Engine Optimization, Key Performance Indicators (KPIs)
Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Object Oriented Programming (OOP), R Programming, Debugging, Functional Design, Programming Principles, Data Manipulation, Data Structures, Software Design Patterns, Performance Tuning, Performance Testing
Intermediate · Course · 1 - 3 Months

Northwestern University
Skills you'll gain: Real Time Data, Social Media Content, Social Media, Social Media Marketing, Big Data, Crisis Management, Analytics, Content Marketing, Social Media Strategy, Text Mining, Data-Driven Decision-Making, Competitive Analysis, Brand Strategy
Mixed · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Cyber Governance, Cyber Risk, Cyber Security Assessment, Security Strategy, Cyber Security Policies, Security Management, Security Awareness, Threat Modeling, Information Privacy, Infrastructure Security, Risk Management, Vulnerability Assessments
Beginner · Course · 1 - 3 Months