The goal of the OWASP Top 10 project is to raise awareness and create a baseline for application security by identifying some of the most critical risks facing organizations. The Top 10 project is referenced by many standards, books, tools, and organizations, including MITRE, PCI DSS, DISA, FTC, and many more. To shape the OWASP Top 10 2017, the project ran a public call for data and industry survey to help define what should be included in the list.Gain insight into some of the details of the OWASP Top 10 Call for Data and industry survey, and what we were attempting to learn. Hear about was learned from collecting and analyzing widely varying industry data and attempts to build a dataset for comparison and analysis. This talk will discuss tips and common pitfalls for structuring vulnerability data and the subsequent analysis. Learn what the data can tell us and what questions are still left unanswered. Uncover some of the differences in collecting metrics in different stages of the software lifecycle and recommendations for handling them.