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.

LearnKartS
Skills you'll gain: WordPress, Responsive Web Design, AI Personalization, Web Design, Web Analytics and SEO, Web Content, Google Analytics, Security Software, AI literacy, Web Presence, AI powered creativity, Cloud Hosting, Web Frameworks, Artificial Intelligence, Control Panels
★ 4.3 (6) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Keras (Neural Network Library), Tensorflow, Model Training, Applied Machine Learning, Convolutional Neural Networks, Deep Learning, Model Optimization, Machine Learning, Computer Vision
★ 4.7 (78) · Intermediate · Guided Project · Less Than 2 Hours

Fundação Instituto de Administração
Skills you'll gain: Workforce Management, People Analytics, Big Data, HR Tech, Applied Machine Learning, Workforce Planning, Data Mining, Data-Driven Decision-Making, Human Resource Strategy, Deep Learning, Human Resource Management, Human Resources Management and Planning, Data Strategy, Workforce Development, Digital Transformation, Machine Learning Methods, Data Engineering, Human Resources, Analytics, Data Science
★ 4.3 (84) · Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Natural Language Processing, grep, Text Mining, Clinical Informatics, Clinical Documentation, Clinical Data Management, R (Software), R Programming, Google Cloud Platform, Health Informatics, Unstructured Data, Data Processing
★ 3.7 (23) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Salesforce, Salesforce Development, Systems Integration, Customer Relationship Management, Customer Relationship Management (CRM) Software, Data Integration, Contract Management, AI Enablement, Responsible AI, Web Services, Business Reporting, Data Ethics, Sales Operations, Customer Analysis, AI literacy, Artificial Intelligence, Application Programming Interface (API), AI Integrations, Software Design Patterns, Data Security
Advanced · Specialization · 1 - 4 Weeks
Duke University
Skills you'll gain: Data Ethics, Exploratory Data Analysis, Data-Driven Decision-Making, Logistic Regression, Statistical Modeling, R (Software), Web Scraping, Ggplot2, Model Evaluation, Statistical Reporting, Data Visualization Software, Predictive Modeling, Tidyverse (R Package), Data Visualization, Responsible AI, Data Transformation, R Programming, Data Science, Data Wrangling, Version Control
★ 4.7 (43) · Beginner · Specialization · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Fundraising, Philanthropy, Advocacy, Social Impact, Crisis Management, Ethical Standards And Conduct, Law, Regulation, and Compliance, Social Justice, Regulation and Legal Compliance, Social Sciences, Drive Engagement, Decision Making, Cultural Sensitivity, Intercultural Competence
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Visual Studio, R (Software), Debugging, R Programming, Data Structures, Microsoft Development Tools, Software Documentation, Programming Principles, Statistical Programming, Program Development, Code Reusability, Development Environment, Data Manipulation, Computational Logic, Software Installation
★ 5 (6) · Beginner · Course · 1 - 4 Weeks

O.P. Jindal Global University
Skills you'll gain: Policy Analysis, Social Justice, Ethical Standards And Conduct, Public Policies, Public Administration, Political Sciences, Economics, Policy, and Social Studies, Economic Development, Governance, Social Sciences, Economics, International Relations, Cultural Diversity, Case Studies
★ 4.4 (25) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Database Administration, Microsoft SQL Servers, Microsoft Azure, Database Management, Operational Databases, Transact-SQL, Database Architecture and Administration, Database Management Systems, Performance Tuning, SQL, Cloud Computing, Security Controls, Azure Active Directory, Cloud Security, Disaster Recovery, Data Migration, Data Security, Virtual Machines
★ 3.9 (15) · Intermediate · Course · 1 - 3 Months

Real Madrid Graduate School Universidad Europea
Skills you'll gain: SAP Analytics Cloud, Artificial Intelligence and Machine Learning (AI/ML), Analytics, Artificial Intelligence, Data Analysis Software, Applied Machine Learning, Data Analysis, Deep Learning, Machine Learning, AI literacy, Data Ethics, Athletic Training, Health Technology, Large Language Modeling, Technology Solutions, Scikit Learn (Machine Learning Library), Technology Strategies, Statistical Methods, Natural Language Processing, Performance Appraisal
★ 4.6 (11) · Beginner · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: Claude Code, Infrastructure as Code (IaC), CI/CD, Bash (Scripting Language), PostgreSQL, Redis, Google Cloud Platform, Ubuntu, Agile Project Management, Continuous Integration, Prometheus (Software), Object Oriented Design, Data Pipelines, Linux Commands, SQL, Web Development Tools, Extract, Transform, Load, Amazon S3, Computational Logic, Software Development
★ 3.4 (8) · Beginner · Specialization · 3 - 6 Months