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.

INSEAD
Skills you'll gain: Agentic systems, Blockchain, Emerging Technologies, AI Security, Generative AI Agents, AI Personalization, Healthcare 5.0, Responsible AI, AI Integrations, Generative AI, Data Ethics, Digital Assets, Environmental Social And Corporate Governance (ESG)
★ 4.8 (32) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Diagram Design, Data Import/Export, Collaborative Software, Technical Communication, Technical Documentation, User Accounts
★ 4.8 (33) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Computer Vision, Image Analysis, Artificial Neural Networks, Convolutional Neural Networks, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Computational Thinking, Psychology, Human Factors
★ 4.4 (67) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Configuration Management, Software Configuration Management, Data Infrastructure, Chef (Configuration Management Tool), IT Automation, Infrastructure as Code (IaC)
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Spatial Data Analysis, Spatial Analysis, Geographic Information Systems, Geospatial Information and Technology, Geospatial Mapping, GIS Software, Data Analysis, Data Visualization, Analytics, Interactive Data Visualization, Google Cloud Platform, Network Analysis, Query Languages
★ 4.3 (16) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: R Programming, Predictive Analytics, Applied Machine Learning, Predictive Modeling, Data Pipelines, R (Software), Data-Driven Decision-Making, Analytics, Data Science, Data Processing, Machine Learning Software, Feature Engineering, Data Preprocessing, Statistical Machine Learning, Machine Learning Methods, Machine Learning, Model Training, Telemarketing, Model Deployment, Model Optimization
★ 4.9 (53) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Responsible AI, Prompt Engineering, Google Sheets, Google Gemini, Gemini, AI Integrations, Email Automation, Compliance Training, AI Workflows, AI Enablement, Governance, Compliance Management, Spreadsheet Software, Financial Regulation, Data Ethics, Microsoft Copilot, Enterprise Security, Google Workspace, Gmail, Financial Services
Beginner · Course · 1 - 4 Weeks

Oracle
Skills you'll gain: Oracle Cloud Applications, Cloud Applications, Oracle Cloud, Cloud Development, Application Development, Database Application, Oracle Databases, Application Deployment, Authentications, Enterprise Application Management, Authorization (Computing), UI Components, Development Environment, Data Import/Export
★ 4.2 (22) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, MongoDB, Secure Coding, Middleware, Event-Driven Programming, Databases
★ 4.6 (12) · Intermediate · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Data Analysis Expressions (DAX), Data Ethics, Data Modeling, Data Governance, Data Architecture, Database Design, Power BI, Data Management, Data Warehousing, General Data Protection Regulation (GDPR), Star Schema, Personally Identifiable Information, Information Privacy, Data Visualization Software, Data Security, Data Integrity, Snowflake Schema, Relational Databases, Data Quality, Extract, Transform, Load
★ 4.7 (23) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: C and C++, Exploit development, C (Programming Language), Security Testing, C++ (Programming Language), Secure Coding, Application Security, System Programming, Debugging, Vulnerability Assessments, Interoperability, White-Box Testing
★ 2.7 (7) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cryptography, Encryption, Python Programming, Data Security
★ 4.6 (16) · Intermediate · Guided Project · Less Than 2 Hours