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.

Johns Hopkins University
Skills you'll gain: Sustainable Systems, Sustainable Development, Transportation Operations, Case Studies, Economic Development, Land Management, Land Development, Community Development, Traffic Flow Optimization, Community Outreach
★ 4.5 (207) · Intermediate · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: CrewAI, AI Workflows, AI Orchestration, Agentic Workflows, Generative AI Agents, Agentic systems, LLM Application, Automation, Artificial Intelligence and Machine Learning (AI/ML), Model Context Protocol, Context Engineering, Artificial Intelligence, System Monitoring, Workflow Management, Context Management, Tool Calling, Continuous Monitoring, Scalability, Memory Management, Large Language Modeling
★ 4.5 (12) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: ServiceNow, Service Level, Systems Administration, User Accounts, Service Management, User Provisioning, Database Application, Security Controls, Business Process Automation, Enterprise Application Management, Email Automation, Role-Based Access Control (RBAC), System Configuration, Identity and Access Management, Information Management, Data Security, Automation, Content Management, Scripting
★ 4.1 (32) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Virtual Networking, Amazon Web Services, Cloud Computing Architecture, Cloud Infrastructure, Network Architecture, Amazon Elastic Compute Cloud, Remote Access Systems
★ 4.6 (20) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Open Source Technology, Package and Software Management, Unit Testing, R (Software), GitHub, Version Control, Rmarkdown, Cross Platform Development, Software Versioning, Software Documentation, Test Case, Testability, R Programming, Code Reusability, Knitr, Continuous Integration, Program Development, Build Tools, Git (Version Control System), Development Testing
★ 4.1 (223) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Model Evaluation, Keras (Neural Network Library), Technical Documentation, Artificial Neural Networks, PyTorch (Machine Learning Library), Model Training, Deep Learning, Model Optimization, Applied Machine Learning, Network Model, Network Architecture, Supervised Learning
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Big Data, Apache Spark, Data Store, Apache Hadoop, Apache Mahout, Distributed Computing, Data Storage, Data Processing, NoSQL, Apache Kafka, Cloud Computing, Real Time Data, Databases, Analytics, Deep Learning, Applied Machine Learning, Machine Learning Methods, Statistical Machine Learning, Scalability, Machine Learning
★ 4.3 (343) · Mixed · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cloud Computing Architecture, Disaster Recovery, AWS Identity and Access Management (IAM), Solution Architecture, Systems Architecture, Amazon Web Services, Network Troubleshooting, Cloud Security, IT Security Architecture, Cloud Solutions, Network Architecture, Cloud-Native Computing, Cloud Infrastructure, Cloud Technologies, Business Continuity Planning, Cloud Standards, Security Controls, Serverless Computing, Security Architecture Review, Business Continuity
★ 4.8 (11) · Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Social Media Management, Social Media, Social Media Content, Social Media Marketing, Social Media Strategy, Content Scheduling, Social Media Campaigns, Content Creation, Social Media Analytics, Instagram, TikTok, Content Development and Management, Content Performance Analysis, Content Strategy, Growth Strategies, Content Optimization, Drive Engagement, Brand Strategy, Digital Marketing, Market Research
★ 4.6 (26) · Beginner · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Malware Protection, Network Troubleshooting, Mobile Security, Security Controls, Remote Access Systems, Scripting, Operating System Administration, Command-Line Interface, Microsoft Windows, Software Installation, Mac OS, Hardware Troubleshooting, Operating Systems, Computer Networking, Linux, Windows Servers, Security Software, Mobile Development Tools, Mobile Development, Software Development
Beginner · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Health Informatics, Health Technology, Telehealth, Interoperability, Clinical Informatics, Informatics, Electronic Medical Record, Health Information Management, Community Health, Healthcare Ethics, Data Sharing, Dental Informatics, Public Health, Data Ethics, Data Visualization, Medical Terminology, Graph Theory
★ 4.4 (314) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cash Flow Forecasting, Cash Management, Cash Flows, Financial Forecasting, Forecasting, Accounting Software, QuickBooks (Accounting Software), Financial Modeling
Beginner · Course · 1 - 4 Weeks