Internet Security courses can help you learn about network security protocols, encryption techniques, and threat detection methods. You can build skills in risk assessment, incident response, and implementing security policies. Many courses introduce tools like firewalls, intrusion detection systems, and antivirus software, demonstrating how these tools are used to protect sensitive data and maintain system integrity.

John Wiley & Sons
Skills you'll gain: Database Design, Relational Databases, SQL, Database Management, Database Theory, Database Systems, Data Integrity, Data Store, Database Development, Network Model, Database Architecture and Administration, Database Management Systems, Systems Development, Microsoft SQL Servers, Performance Tuning, Requirements Analysis, Systems Development Life Cycle, Data Modeling, Data Architecture, Data Manipulation
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Linux Administration, Red Hat Enterprise Linux, Linux, Package and Software Management, Linux Commands, Linux Servers, Unix Commands, Command-Line Interface, Systems Administration, Unix Shell, Network Troubleshooting, Operating Systems, Firewall, File Systems, Hardening, Authorization (Computing), IT Automation, Computer Networking, User Accounts, Network Protocols
Beginner · Specialization · 1 - 3 Months

Sage Publications
Skills you'll gain: Data Visualization, Matplotlib, Plot (Graphics), Web Scraping, Scientific Visualization, Data Processing, Data Collection, Social Sciences, Social Impact, Data Analysis, Data Ethics, File I/O, Research, Programming Principles, Program Development, Social Justice, Python Programming, Computer Programming, Data Manipulation, Research Reports
Beginner · Course · 3 - 6 Months

Multiple educators
Skills you'll gain: Data Store, Apache Airflow, Data Modeling, Data Pipelines, Data Storage, Data Storage Technologies, Data Architecture, Requirements Analysis, Data Processing, Data Warehousing, Query Languages, Data Preprocessing, Apache Hadoop, Requirements Elicitation, Vector Databases, Extract, Transform, Load, Data Lakes, Data Integration, Infrastructure as Code (IaC), Data Management
★ 4.7 (617) · Intermediate · Professional Certificate · 3 - 6 Months

Skills you'll gain: NIST 800-53, Risk Management Framework, Cyber Risk, Federal Information Security Management Act, Systems Development Life Cycle, Cybersecurity, Continuous Monitoring, Security Management, Cyber Governance, Cyber Security Strategy, Security Controls, Infrastructure Security, Cyber Security Assessment, Incident Response, Authorization (Computing), Security Requirements Analysis, Cyber Security Policies, Information Assurance, Information Systems Security, Personally Identifiable Information
★ 4.4 (230) · Beginner · Specialization · 3 - 6 Months

University of London
Skills you'll gain: Cryptography, Cryptographic Protocols, Application Security, Cybersecurity, Data Security, Encryption, Vulnerability Assessments, Information Systems Security, Key Management, Public Key Infrastructure, Mobile Security, Data Integrity
★ 4.6 (77) · Beginner · Course · 1 - 4 Weeks

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, AI Security, Prompt Patterns, Vibe coding, Agentic Workflows, Tool Calling, AI Workflows, Generative AI Agents, AI Personalization, Application Deployment, GitHub, Integrated Development Environments, Software Development Tools, Generative AI, Software Development, Web Development, Artificial Intelligence, Code Review, Front-End Web Development, Software Engineering
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Graph Theory, Data Structures, Java Programming, Java, Object Oriented Design, Software Design, Algorithms, Theoretical Computer Science, Code Reusability, Object Oriented Programming (OOP), Network Routing, Application Design, Application Development
★ 4.8 (1.2K) · Intermediate · Course · 1 - 3 Months
University of Alberta
Skills you'll gain: Requirements Analysis, Requirements Elicitation, Functional Requirement, Backlogs, User Requirements Documents, Change Control, User Story, System Requirements, Software Design, Acceptance Testing, Agile Methodology, Agile Software Development
★ 4.8 (3.2K) · Mixed · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: CI/CD, C# (Programming Language), Azure DevOps, Object Oriented Design, Continuous Integration, Object Oriented Programming (OOP), ASP.NET, Debugging, SQL, Secure Coding, Cloud Deployment, .NET Framework, Microsoft Copilot, Relational Databases, Scalability, Database Management, Graph Theory, Back-End Web Development, Program Development, Data Structures
★ 4.6 (388) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Portfolio Risk, Portfolio Management, Risk Modeling, Financial Market, Market Liquidity, Risk Management Framework, Risk Management, Investment Management, Risk Analysis, Performance Analysis, Performance Measurement, Investments, Asset Management, Finance, Financial Modeling, Due Diligence, Budgeting, Analysis, Decision Making
Mixed · Course · 1 - 3 Months

Skills you'll gain: Requirements Analysis, Stakeholder Engagement, Project Scoping, Scope Management, Stakeholder Management, Requirements Elicitation, Work Breakdown Structure, Stakeholder Communications, Requirements Management, Communication Planning, Stakeholder Analysis, Change Control, Project Management, Acceptance Testing, Verification And Validation, Planning, Analysis, Change Management, Communication
Mixed · Course · 1 - 4 Weeks