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: Restful API, Web Services, Java Platform Enterprise Edition (J2EE), Software Design, Java, Application Programming Interface (API), API Design, Web Applications, Object Oriented Design, Software Design Patterns, Software Architecture, Command-Line Interface
★ 4.3 (16) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Market Opportunities, AI Product Strategy, Responsible AI, Technical Management, AI Enablement, Artificial Intelligence and Machine Learning (AI/ML), Data Ethics, Artificial Intelligence, Applied Machine Learning, AI literacy, Data Science, Artificial Neural Networks, Machine Learning, Discussion Facilitation, Deep Learning, Recruitment, Sales
★ 4.9 (324) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Statistical Hypothesis Testing, Regression Analysis, R Programming, Data Ethics, Statistical Analysis, Experimentation, Research Design, Statistical Methods, Statistical Programming, Data Science, Data Analysis, R (Software), Predictive Modeling, Statistical Software, Predictive Analytics, Probability & Statistics, General Science and Research, Correlation Analysis
★ 4.1 (62) · Intermediate · Specialization · 3 - 6 Months
University of Pennsylvania
Skills you'll gain: Demography, Market Trend, Trend Analysis, International Relations, International Finance, Socioeconomics, Social Sciences, Economics, Policy, and Social Studies, Cultural Diversity, Political Sciences, Financial Systems, World History, Business Acumen, Economic Development, Economics, Business Economics, Consumer Behaviour, Financial Policy, Public Safety and National Security, Governance
★ 4.8 (925) · Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Mammography, Model Evaluation, Model Training, Artificial Intelligence, Bayesian Network, Image Analysis, AI Product Strategy, Machine Learning Methods, Oncology, Artificial Neural Networks, Medical Imaging, Machine Learning, Applied Machine Learning, Deep Learning, Epidemiology
★ 4.6 (81) · Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Amazon Web Services, Cloud Infrastructure, Network Troubleshooting, Technical Consulting, Amazon S3, Cloud Solutions, Cloud Computing, Cloud Management, Technical Support, AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Scenario Testing, System Support, Virtual Networking, Customer Support, Cloud Storage, Cloud-Based Integration, Security Controls, Database Management
★ 4.8 (69) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Digital Assets, Financial Inclusion, Transportation, Supply Chain, and Logistics, Plan Execution, Supply Chain, Governance, Supply Chain Management, Business Transformation, FinTech, Supply Chain Systems, Business Analysis, Market Opportunities, Interoperability, Business Leadership, Strategic Partnership, Strategic Leadership, Stakeholder Analysis, Logistics, Cryptography
★ 4.7 (72) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Cloud Management, Compliance Management, IT Automation, Infrastructure as Code (IaC), Terraform, Cloud Security, Cost Control, Automation, Amazon Web Services, Governance, Compliance Auditing, Security Controls, Cost Management, Scripting, Analytics, Advanced Analytics, Billing, Data-Driven Decision-Making, Analysis
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Consultative Selling, Sales Prospecting, Consultative Approaches, Selling Techniques, Sales Development, General Sales Practices, Sales Management, Lifelong Learning, Sales Training, Lead Generation, Sales Operations, Communication, Process Optimization, Presentations, User Research, Regional Sales, B2B Sales, Customer Relationship Management (CRM) Software, Account Management, Negotiation
Beginner · Specialization · 1 - 3 Months

Queen Mary University of London
Skills you'll gain: Cloud Deployment, Cloud Services, Legal Risk, Cloud Computing, Intellectual Property, Cloud Computing Architecture, Cloud Storage, Cloud Platforms, Contract Negotiation, Cloud Security, Vendor Contracts, Cyber Risk, Contract Review, Law, Regulation, and Compliance, Contract Management, Data Security, Data Governance, Negotiation, Regulatory Requirements, Cybersecurity
★ 4.9 (102) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Data Encryption Standard, Advanced Encryption Standard (AES), Cryptography, Encryption, Key Management, Brute-force attacks, Algorithms
★ 4.5 (284) · Intermediate · Course · 1 - 3 Months
DeepLearning.AI
Skills you'll gain: Fine-tuning, Model Training, Model Evaluation, Climate Change Adaptation, Applied Machine Learning, Image Analysis, Environmental Monitoring, Convolutional Neural Networks, Artificial Intelligence, Climate Change Mitigation, Model Optimization, Artificial Neural Networks, Environmental Issue, Machine Learning Methods, Data Processing, Forecasting, Computer Vision, Predictive Modeling, Environmental Science, Supervised Learning
★ 4.8 (143) · Beginner · Course · 1 - 4 Weeks