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.

Columbia University
Skills you'll gain: Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Markov Model, Deep Learning, Data-Driven Decision-Making, Decision Support Systems, Simulations, Probability Distribution, Statistical Methods
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Microsoft Teams, Microsoft 365, Team Management, Group Policy, Azure Active Directory, User Accounts, System Configuration, Identity and Access Management, Product Lifecycle Management, Windows PowerShell, Network Planning And Design, Network Performance Management, Security Controls
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Incident Management, Cybersecurity, Human Factors (Security), Security Awareness, Continuous Monitoring, Cyber Security Strategy, Cyber Governance, Computer Security Awareness Training, Culture Transformation, Threat Detection, Organizational Change, Employee Training, Employee Engagement, Communication Strategies
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Postman API Platform, API Testing, Data Validation, Application Programming Interface (API), Restful API, Verification And Validation, Performance Tuning, Microservices, Performance Testing, Security Controls, Data Integrity, Authentications
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Search Engine Optimization, Web Analytics and SEO, Digital Marketing, Online Advertising, Return On Investment, Media Planning, Consumer Behaviour, Cross-Channel Marketing, Digital Advertising, Marketing Channel, Social Media Marketing, Marketing Strategies, Marketing Effectiveness, Paid media, Network Model, Business-To-Consumer, Marketing Analytics, Business Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: Firewall, Network Security, Linux, Linux Administration, Security Controls, Hardening, Ubuntu, File Management, Authorization (Computing), File Systems, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Arithmetic, Algorithms, Applied Mathematics, Probability, Computer Science
Beginner · Course · 1 - 4 Weeks

Splunk Inc.
Skills you'll gain: Splunk, Data Modeling, Dashboard, Pivot Tables And Charts, Interactive Data Visualization, Data Management, Database Management, Visualization (Computer Graphics), Data Mapping, Incident Management, Query Languages, Data Integration, Information Management, Event Monitoring, Performance Tuning, Frontend Performance, Big Data, Business Intelligence, Data Analysis, Business Analytics
Intermediate · Specialization · 1 - 3 Months
Universidad Austral
Skills you'll gain: Server Side, Node.JS, Back-End Web Development, Restful API, MongoDB, Application Deployment, OAuth, Web Servers, Application Servers, Web Applications, Authentications, Application Security, Object-Relational Mapping, NoSQL, Data Persistence, Authorization (Computing), Software Testing
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ABAP RESTful Programming Model (RAP), SAP S/4HANA, Restful API, Core Data (Software), Secure Coding, Security Controls, HTML and CSS, UI Components
Intermediate · Course · 1 - 4 Weeks
Codio
Skills you'll gain: Infrastructure as Code (IaC), Terraform, Docker (Software), Kubernetes, Ansible, Containerization, Ubuntu, Cloud Infrastructure, Cloud Management, Cloud-Native Computing, Cloud Computing Architecture, Systems Development, Application Deployment, Firewall, Infrastructure As A Service (IaaS), Security Controls, Unix, Bash (Scripting Language), Amazon Web Services, Amazon Elastic Compute Cloud
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Embedded Software, System Programming, Software Development Tools, Embedded Systems, Software Development, Debugging, Application Security, C (Programming Language), Application Development, Computer Architecture, C++ (Programming Language), Performance Tuning
Intermediate · Course · 1 - 3 Months