SecureNinja OWASP Top 10 is a 2-day instructor-led training course focused on the OWASP Top 10 2019 web application security vulnerabilities. The course is language-agnostic and covers conceptual understanding of web application threats, vulnerabilities, and mitigation strategies. The training covers all ten items from the OWASP Top 10 list, including Injection, Broken Authentication and Session Management, Cross-Site Scripting (XSS), Insecure Direct Object References, Security Misconfiguration, Sensitive Data Exposure, Missing Function Level Access Control, Cross-Site Request Forgery (CSRF), Using Components with Known Vulnerabilities, and Unvalidated Redirects and Forwards. Each vulnerability topic includes conceptual explanations, real-world examples of how organizations have been affected by these exploits, and recommendations for defense strategies. The course is delivered as an onsite format for groups of 5 or more participants, with instructor-led computer-based training and remote training options available. Students completing this course gain understanding of modern web application vulnerabilities and exploits, with the option to continue with follow-on courses such as Web Application Exploiting and Defending.