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.

Duke University
Skills you'll gain: Bayesian Statistics, Statistical Hypothesis Testing, Statistical Modeling, Statistical Methods, Statistical Inference, Statistical Programming, Statistical Analysis, Probability & Statistics, Regression Analysis, Data Analysis, R Programming, Statistical Software, Probability, Analysis, Data-Driven Decision-Making, Predictive Modeling, Model Evaluation, Probability Distribution
★ 3.8 (801) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Robotic Process Automation, Data Manipulation, Email Automation, Web Scraping, User Interface (UI), Business Process Automation, Automation, UI Components, Human Computer Interaction, Context Management, Network Protocols, Data Import/Export, Software Development Tools, Robotics, Data Management, Process Modeling, Computing Platforms, Package and Software Management, Programming Principles, Document Management
★ 4.7 (535) · Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Digital Forensics, grep, Network Protocols, General Networking, Record Keeping, Data Storage, Data Integrity, File Management, Ethical Standards And Conduct, Encryption, Data Validation, Technical Documentation
★ 4.7 (272) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Database Systems, Database Design, Database Theory, Database Development, Relational Databases, Database Management Systems, Database Management, MySQL, Databases, Database Architecture and Administration, Database Software, SQL, PostgreSQL, NoSQL, Scalability, Data Integrity, Stored Procedure, Query Languages, Distributed Computing, Transaction Processing
Intermediate · Course · 1 - 3 Months

Fortinet, Inc.
Skills you'll gain: Firewall, Network Security, Virtual Private Networks (VPN), Network Administration, IT Security Architecture, Intrusion Detection and Prevention, Network Infrastructure, Enterprise Security, Network Architecture, Infrastructure Security, Remote Access Systems, Security Controls, System Configuration, Security Software, Performance Tuning, Cybersecurity, API Gateway, Hardware Architecture, Malware Protection, Threat Detection
★ 4.4 (24) · Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Banking Services, Financial Systems, Supply And Demand, Banking, Financial Policy, Loans, Market Liquidity, Deposit Accounts, Finance, Economics, Market Dynamics, General Lending, Economics, Policy, and Social Studies, Consumer Behaviour
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Payment Systems, Payment Processing, Financial Inclusion, FinTech, Mobile Banking, Credit/Debit Card Processing, Emerging Technologies, Transaction Processing, Security Controls, Value Propositions
★ 4.7 (1.8K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Meta Ads Manager, Driving engagement, Social Media Content, Online Advertising, Advertising, Social Media Marketing, Advertising Campaigns, Social Media Campaigns, Marketing, Customer Engagement, Social Media Management, Business Marketing, Target Audience, Web Presence
★ 4.6 (1.3K) · Beginner · Guided Project · Less Than 2 Hours

Macquarie University
Skills you'll gain: Responsible AI, Incident Response, AI Security, Computer Security Incident Management, Incident Management, Fraud detection, Threat Detection, Security Management, Anomaly Detection, Security Testing, Cyber Attacks, Threat Modeling, Data Ethics, Cybersecurity, Cyber Operations, Network Security, Malware Protection, Crisis Management, Machine Learning, Generative Adversarial Networks (GANs)
★ 5 (7) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Prompt Patterns, Retrieval-Augmented Generation, Large Language Modeling, AI Security, Agentic Workflows, Embeddings, Generative AI Agents, Vector Databases, Generative AI, Application Deployment, Context Management, Artificial Intelligence, AI Personalization, Knowledge Transfer, Prototyping, Test Tools, JSON, Systems Architecture, Continuous Monitoring
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Health Insurance Portability And Accountability Act (HIPAA) Compliance, General Data Protection Regulation (GDPR), Medical Privacy, Law, Regulation, and Compliance, Information Privacy, Personally Identifiable Information, Regulatory Compliance, Regulation and Legal Compliance, Compliance Management, Data Security, Health Information Management, Data Loss Prevention, Data Management, Incident Response, Governance, Risk Management
★ 4.8 (857) · Mixed · Course · 1 - 4 Weeks

University of Washington
Skills you'll gain: Classification Algorithms, Classification And Regression Tree (CART), Applied Machine Learning, Model Training, Logistic Regression, Supervised Learning, Predictive Modeling, Decision Tree Learning, Data Preprocessing, Model Evaluation, Text Mining, Machine Learning Algorithms, Feature Engineering, Data Cleansing, Scalability, Model Optimization, Risking, Machine Learning, Natural Language Processing, Probability & Statistics
★ 4.7 (3.7K) · Mixed · Course · 1 - 3 Months