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.

Skills you'll gain: Digital Forensics, Cybersecurity, Malware Protection, Network Security, Network Analysis, Operating Systems, Data Integrity, Microsoft Windows, Mac OS, File Systems, Linux, Web Applications
Beginner · Course · 1 - 3 Months
Skills you'll gain: File Systems, Operating Systems, Unix, Data Integrity, Debugging, File I/O, Linux, Distributed Computing, Data Storage, C (Programming Language), System Programming, Command-Line Interface, Data Security, Computer Hardware, Scalability
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Exploitation techniques, Penetration Testing, Open Web Application Security Project (OWASP), Proxy Servers, Security Testing, Vulnerability Assessments, Web Servers
Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Loans, Lending and Underwriting, FinTech, Key Management, Cryptography, Digital Assets, Market Liquidity, Financial Trading, Transaction Processing, Governance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: API Design, Back-End Web Development, Secure Coding, Data Security, Application Programming Interface (API), Restful API, Application Security, Infrastructure Security, Data Integrity, Servers, OAuth, Cloud Security, Server Administration, System Configuration, Encryption, Firewall, Security Testing, Hardening
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Ethics, Data Visualization Software, Interactive Data Visualization, Visualization (Computer Graphics), Data Security, Data Presentation, User Centered Design, User Experience Design, Technical Communication, Cybersecurity, Healthcare Ethics, Usability, Statistical Reporting, Human Centered Design, Authentications, Data Storytelling, Ethical Standards And Conduct, Information Privacy, Responsible AI, Analysis
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Penetration Testing, Cyber Governance, Risk Management, Cyber Security Strategy, Risk Appetite, Business Risk Management, Vendor Management, Governance Risk Management and Compliance, Security Strategy, Cyber Security Policies, Personally Identifiable Information, Compliance Management, Business Continuity, Information Privacy, Cyber Risk, Risk Analysis, Security Awareness, Data Management, Vulnerability Management
Intermediate · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Computer Vision, Image Analysis, Dimensionality Reduction, Artificial Neural Networks, Machine Learning Methods, Unsupervised Learning, Deep Learning, Graph Theory, Machine Learning Algorithms, Algorithms
Beginner · Course · 1 - 3 Months

University of Toronto
Skills you'll gain: Global Positioning Systems, Estimation, Robotics, Deep Learning, Machine Learning Methods, Computer Vision, Control Systems, Mathematical Modeling, Applied Mathematics, Linear Algebra
Advanced · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Core Data (Software), Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, iOS Development, Responsive Web Design, Data Persistence, Data Structures, Object Oriented Programming (OOP), Unit Testing, Transaction Processing, Database Application, User Interface (UI), Application Development, UI Components, Application Programming Interface (API), Data Access, Mobile Development
Beginner · Specialization · 3 - 6 Months

Illinois Tech
Skills you'll gain: Open Source Technology, Package and Software Management, Linux, Shell Script, Ubuntu, Unix Shell, Linux Administration, Operating System Administration, Bash (Scripting Language), Unix, Operating Systems, Command-Line Interface, Scripting, Linux Commands, Red Hat Enterprise Linux, File Systems, System Configuration, Database Management, General Networking, Network Security
Build toward a degree
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Responsible AI, AI Product Strategy, Generative AI, Strategic Thinking, Risking, Data Ethics, Large Language Modeling, Business Strategy, Regulation and Legal Compliance, Business Planning, AI Enablement, Organizational Change, Customer experience strategy (CX), Business Ethics, AI Security, Generative AI Agents, Business Leadership, Business Transformation, Stakeholder Communications, Customer Insights
Beginner · Specialization · 1 - 3 Months