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: Core Data (Software), iOS Development, Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, Code Review, UI Components, Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Data Structures, Data Persistence, User Interface (UI), User Interface (UI) Design, Data Store, Application Development, Transaction Processing, Mobile Development
★ 4.4 (913) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Generative AI, Generative Model Architectures, Generative Adversarial Networks (GANs), OpenAI, Hugging Face, Large Language Modeling, Deep Learning
★ 4.7 (352) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Front-End Web Development, React Redux, React.js, JavaScript Frameworks, Full-Stack Web Development, Web Applications, User Interface (UI), Web Development, UI Components, Code Reusability, Javascript, Event-Driven Programming, Application Programming Interface (API), Dataflow
★ 4.4 (778) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: DevSecOps, Infrastructure Security, Cyber Governance, Zero Trust Network Access, Threat Detection, Security Engineering, IT Security Architecture, Threat Modeling, Endpoint Detection and Response, Security Information and Event Management (SIEM), Cyber Threat Hunting, Enterprise Architecture, Cloud Infrastructure, Application Security, Network Security, Identity and Access Management, Cyber Security Policies, Governance Risk Management and Compliance, Risk Analysis, Role-Based Access Control (RBAC)
Advanced · Professional Certificate · 3 - 6 Months

Skills you'll gain: Active Directory, Group Policy, Microsoft Windows, Windows Servers, Patch Management, Security Controls, Microsoft Servers, Operating System Administration, Virtualization, Performance Tuning, General Networking, Virtual Machines, Hardening, System Configuration, Server Administration, Data Storage Technologies, Security Software, Servers, Network Security, Authentications
Beginner · Specialization · 3 - 6 Months
Johns Hopkins University
Skills you'll gain: Shiny (R Package), Rmarkdown, Exploratory Data Analysis, Model Evaluation, R (Software), Regression Analysis, Leaflet (Software), Version Control, Statistical Analysis, R Programming, Data Manipulation, Data Cleansing, Data Science, Statistical Inference, Predictive Modeling, Statistical Hypothesis Testing, Data Wrangling, Data Visualization, Machine Learning, GitHub
★ 4.5 (51K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: NoSQL, Database Administration, Data Warehousing, SQL, Data Pipelines, Apache Hadoop, Database Architecture and Administration, Database Design, Database Management, Relational Databases, Data Security, Linux Commands, Data Migration, Data Governance, MongoDB, Apache Spark, Apache Kafka, Extract, Transform, Load, Data Architecture, Data Store
★ 4.6 (7.6K) · Beginner · Professional Certificate · 3 - 6 Months

Google Cloud
Skills you'll gain: Responsible AI, LLM Application, Generative Model Architectures, AI literacy, AI Product Strategy, Deep Learning, Statistical Machine Learning
★ 4.7 (15K) · Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Risk Modeling, Operations Research, Regression Analysis, Network Model, Resource Allocation, Excel Macros, Business Analytics, Decision Making, Risk Analysis, Simulation and Simulation Software, Microsoft Excel, Strategic Decision-Making, Data Modeling, Business Modeling, Financial Modeling, Data-Driven Decision-Making, Excel Formulas, Business, Spreadsheet Software, Data Analysis
★ 4.8 (4.1K) · Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Core Data (Software), JSON, Apple iOS, iOS Development, Data Persistence, Data Store, Network Model, Database Application, Mobile Development, Application Programming Interface (API), Data Modeling, UI Components, Network Protocols, User Interface (UI)
★ 4.6 (137) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Amazon Web Services, AWS Identity and Access Management (IAM), Virtual Private Networks (VPN), Identity and Access Management, Cloud Infrastructure, Cloud Computing Architecture, Cloud Computing, Virtual Networking, Network Routing, Firewall, Network Security, Border Gateway Protocol, Wide Area Networks, User Accounts, Load Balancing
★ 4.7 (1.7K) · Intermediate · Course · 1 - 4 Weeks

Birla Institute of Technology & Science, Pilani
Skills you'll gain: Social Network Analysis, Social Media Analytics, Graph Theory, Big Data, Network Analysis, AI Personalization, Network Model, Graphing, Analytics, Data Mining, AI Security, Deep Learning, Applied Machine Learning, Responsible AI, Artificial Intelligence, Data Ethics, Unsupervised Learning, Machine Learning, Algorithms, Research
Intermediate · Course · 1 - 3 Months