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.

LearnQuest
Skills you'll gain: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, JSON, Web Applications, Software Architecture, Server Side
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IT Security Architecture, Incident Response, Endpoint Security, Zero Trust Network Access, Risk Analysis, Network Security, Risk Mitigation, Cyber Governance, Compliance Auditing, Event Monitoring, Application Security, Cyber Security Policies, Cyber Risk, Computer Security, Governance, Data Security, Information Systems Security, Infrastructure Security, Mobile Security, Risk Management
Intermediate · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Authentications, Cloud Security, Cybersecurity, Threat Detection, Security Awareness, Cyber Attacks, Network Security, Vulnerability Assessments, Cloud Computing, Data Security, Identity and Access Management, Human Factors (Security), Software As A Service
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Web Services, Extensible Markup Language (XML), Java Platform Enterprise Edition (J2EE), Java, Web Applications
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Personal protective equipment, Environmental Regulations, Safety Training, Occupational Safety and Health Administration (OSHA), Hazard Analysis, Energy and Utilities, Safety Standards, Hazard Communication (HazCom), Safety and Security, Fire And Life Safety, Regulatory Compliance, First Aid, Emergency Response
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Tensorflow, Transfer Learning, Deep Learning, Keras (Neural Network Library), Convolutional Neural Networks, Artificial Neural Networks, Model Evaluation
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Relational Databases, SQL, Databases, Data Access, Data Manipulation, Database Management, Query Languages
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Routing Protocols, Network Routing, TCP/IP, Network Protocols, Network Architecture, Network Performance Management, Computer Networking, OSI Models, Local Area Networks, Graph Theory, Algorithms
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Sales Strategy, Consultative Selling, B2B Sales, Customer Relationship Building, Business Communication, Sales Pipelines, Overcoming Objections, Sales Process, Proposal Writing, Personalized Service, Digital Transformation, Prospecting and Qualification, AI Personalization, Value Propositions
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Cloud Infrastructure, Network Architecture, Computer Networking, Cloud Computing Architecture, Software-Defined Networking, Cloud Computing, Network Routing, TCP/IP, Wide Area Networks, Data Centers, Network Performance Management, Network Switches, Virtual Machines, Scalability, Python Programming
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Ggplot2, Software Documentation, Open Source Technology, Tidyverse (R Package), Package and Software Management, Web Scraping, Data Manipulation, Data Visualization Software, Leaflet (Software), R Programming, Data Visualization, Data Preprocessing, Technical Documentation, Datamaps, Unit Testing, Data Cleansing, Interactive Data Visualization, Data Transformation, Object Oriented Programming (OOP), Debugging
Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Cyber Threat Hunting, Threat Detection, Endpoint Detection and Response, Cyber Security Strategy, System Monitoring, Cybersecurity, Continuous Monitoring, Network Security, Network Monitoring, Python Programming, Anomaly Detection, Scripting, Scripting Languages
Intermediate · Course · 1 - 4 Weeks