Our sixth consecutive Code Security Advent Calendar is being released on December 1st, featuring 24 daily code challenges with realistic security vulnerabilities and tricks from real-world production code. The calendar will be shared on Twitter, where participants can follow @SonarSource to receive notifications and engage in discussions about solutions and feedback. Real-world code vulnerabilities crafted by SonarSource's team of security researchers will challenge participants across popular programming languages, including C/C++ and JavaScript. The event aims to make the experience enjoyable for all skill sets and levels, with hints provided throughout the day and detailed solutions after 24 hours. Participants who complete challenges may receive a swag pack if they are among the most active players with the best solutions.