This document summarizes a presentation about making Joomla insecure and how to protect against common vulnerabilities. It demonstrates how to introduce vulnerabilities like SQL injection, local file inclusion, and cross-site scripting. It then provides tips to secure a Joomla site, such as sanitizing user input, updating to the latest version, using strong passwords, checking for file existence, and more. The goal is to make attendees aware of potential risks and how to properly secure a Joomla website.