Pen testing courses can help you learn vulnerability assessment, network security, and ethical hacking techniques. You can build skills in penetration testing methodologies, risk analysis, and incident response strategies. Many courses introduce tools like Metasploit, Wireshark, and Burp Suite, that support identifying and exploiting security weaknesses in systems and applications. By engaging with these tools, you can practice practical work that enhance your ability to secure networks and protect sensitive data.

Skills you'll gain: GitHub Copilot, Object Oriented Design, Object Oriented Programming (OOP), Game Design, Unit Testing, Python Programming, AI Enablement, Program Development, GitHub, Development Environment, Debugging
★ 4.7 (11) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Exploratory Data Analysis, Plot (Graphics), Box Plots, Correlation Analysis, Data Visualization, Scatter Plots, Data Cleansing, Statistical Visualization, Data Preprocessing, Data Manipulation, Statistical Hypothesis Testing, Descriptive Statistics, Statistical Analysis, Data Analysis, Probability & Statistics, Statistical Methods, Python Programming
★ 4.3 (35) · Beginner · Guided Project · Less Than 2 Hours

Arizona State University
Skills you'll gain: Statistical Methods, Bayesian Statistics, Statistics, Probability & Statistics, Analytics, Data Storage Technologies, Exploratory Data Analysis, Data Store, Mathematical Software, Data Storage, Data Access, Database Software, Estimation, Machine Learning Methods, Data-Driven Decision-Making, Applied Machine Learning, Supervised Learning, Markov Model, Logistic Regression, Regression Testing
★ 4.3 (6) · Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Jupyter, Microservices, AWS SageMaker, Command-Line Interface, Package and Software Management, Containerization, Applied Machine Learning, Python Programming, Application Deployment, Test Automation, Algorithms, Software Installation
★ 4.4 (43) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Azure DevOps, Azure DevOps Pipelines, Continuous Delivery, CI/CD, DevOps, Test Planning, Continuous Integration, Software Development Methodologies, Git (Version Control System), Agile Software Development, YAML, Continuous Deployment, GitHub, Agile Methodology, Microsoft Development Tools, Microsoft Azure, Test Automation, Systems Development Life Cycle, Version Control, Agile Project Management
★ 4.3 (6) · Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Languages and XML, IT Automation, Extensible Markup Language (XML), API Testing, Network Protocols, YAML, Network Monitoring, Automation, Network Engineering, Scripting Languages, Python Programming, Real Time Data
★ 4.6 (36) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AI Security, Large Language Modeling, LLM Application, Cybersecurity, Prompt Engineering, Threat Modeling, Cyber Security Assessment, Application Security, Vulnerability Assessments, Security Testing, Network Security, Exploitation techniques
★ 3.9 (23) · Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI Agents, Java, Java Programming, Agentic systems, Agentic Workflows, AI Workflows, Generative AI, LLM Application, Tool Calling, OpenAI API, Application Development, Prompt Engineering, Large Language Modeling, Memory Management
★ 4.2 (25) · Beginner · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Software Engineering, Code Reusability, Program Development, Video Game Development, Programming Principles, Software Development, Computer Programming, Event-Driven Programming, Software Testing, Computational Thinking, Game Design, Animations, Animation and Game Design
★ 4.6 (27) · Mixed · Course · 1 - 3 Months

Infosec
Skills you'll gain: MITRE ATT&CK Framework, Penetration Testing, Exploitation techniques, Brute-force attacks, Cyber Operations, Scripting, Cybersecurity, Python Programming, Network Analysis, Automation
★ 4.4 (56) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: JSON, Javascript, JavaScript Frameworks, Software Testing, Unit Testing, Scripting, Frontend Performance, Event-Driven Programming, Hypertext Markup Language (HTML), Scripting Languages, Data Validation, Data Structures, Network Protocols, Verification And Validation
★ 3.8 (12) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Metasploit, Public Key Infrastructure, Exploit development, Exploitation techniques, Cybersecurity, Cryptography, Mobile Security, Cryptographic Protocols, Security Testing, Vulnerability Scanning, Application Security, Network Security, Operating Systems, Encryption, Hardening, Vulnerability Assessments, Computer Security, Web Applications
★ 4 (20) · Intermediate · Specialization · 3 - 6 Months