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.

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Financial Statements, Revenue Forecasting, Budget Management, Financial Statement Analysis, Business Intelligence Software, Financial Forecasting, Power BI, Financial Analysis, Cash Flows, Cost Management, Spreadsheet Software, Balance Sheet, Financial Reporting, Microsoft Excel, Dashboard, Data Visualization, Key Performance Indicators (KPIs), Business Intelligence
★ 3.7 (7) · Intermediate · Specialization · 1 - 3 Months

Edureka
Skills you'll gain: Cyber Threat Intelligence, Cyber Operations, Cyber Threat Hunting, Threat Modeling, Cybersecurity, Cyber Security Strategy, Network Security, MITRE ATT&CK Framework, Intrusion Detection and Prevention, Cyber Attacks, Linux Commands, Linux, Cyber Engineering, Network Administration, Operating System Administration, Hardening, Network Monitoring, Exploitation techniques, Security Awareness, Operating Systems
★ 4.7 (6) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Authentications, Angular, API Design, Application Programming Interface (API), TypeScript, Frontend Integration, Restful API, Authorization (Computing), Web Development Tools, GraphQL, Secure Coding, Full-Stack Web Development, Node.JS, Application Design, Role-Based Access Control (RBAC), Enterprise Security, Enterprise Architecture, Software Architecture, Web Development, Javascript
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Marketing Analytics, Digital Marketing Tools, Content Performance Analysis, Social Media Marketing, Social Media Content, Business Marketing, Social Media Management, Customer Engagement, Strategic Partnership, Gmail, Drive Engagement, Target Audience, Content Creation
★ 4.7 (1.4K) · Beginner · Guided Project · Less Than 2 Hours

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Design, Relational Databases, Database Systems, Database Theory, Database Management, Databases, Query Languages, Data Integrity, Transaction Processing
★ 4.9 (16) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Token Optimization, LangChain, Large Language Modeling, Prompt Engineering, Retrieval-Augmented Generation, Model Optimization, MLOps (Machine Learning Operations), AI Workflows, Application Performance Management, System Monitoring, Generative AI, Agentic Workflows, AI Enablement, Debugging, Personally Identifiable Information, AI literacy, Continuous Monitoring, Secure Coding, Dashboard, Semantic Web
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Sampling (Statistics), Sample Size Determination, Surveys, Survey Creation, Research Methodologies, Statistical Analysis, Data Analysis Software, Data Collection, Statistical Software, Interviewing Skills, Research Design, STATA (Software), R (Software), Data Integration, Data Validation, Data Ethics, Data Analysis, Stata, Statistical Programming, R Programming
★ 4.4 (1.5K) · Beginner · Specialization · 3 - 6 Months

Google Cloud
Beginner · Course · 1 - 3 Months

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cloud Security, Authentications, Key Management, Data Security, Cloud Applications, Cloud Development, Cloud Services, Application Security, Authorization (Computing), Cyber Risk, Secure Coding, Cloud Storage, Personally Identifiable Information, DevSecOps, General Data Protection Regulation (GDPR), Network Security, Information Privacy, Computer Security, Cryptography
★ 4.3 (172) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Apache Hadoop, Apache Spark, PySpark, Apache Hive, Big Data, IBM Cloud, Kubernetes, Docker (Software), Scalability, Data Processing, Development Environment, Distributed Computing, Performance Tuning, Open Source Technology, Data Transformation, Debugging
★ 4.4 (485) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Supply Chain, Demand Planning, Supply Chain Management, Supply Chain Planning, Process Improvement, Process Improvement and Optimization, Performance Improvement, Customer Demand Planning, Logistics Management, Production Planning, Sustainable Business, Logistics, Analytics, Profit and Loss (P&L) Management, Corporate Sustainability, Forecasting, Data Analysis, Risk Management, Data Visualization, Problem Solving
★ 4.8 (588) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cloud Management, Infrastructure as Code (IaC), Azure Active Directory, Microsoft Azure, Identity and Access Management, Role-Based Access Control (RBAC), Active Directory, Enterprise Architecture, User Provisioning, IT Management, User Accounts, Authorization (Computing), Cloud Deployment, Authentications, Self Service Technologies
Intermediate · Course · 1 - 4 Weeks