Gandalf, an AI security education platform created by Lakera, has unveiled a redesigned user interface aimed at enhancing usability and educational value. Initially developed during a hackathon to address vulnerabilities in large language models (LLMs), Gandalf has become a widely-used tool for understanding AI security, with over a million players engaging in its challenging prompt-injection game. The updated interface includes new features such as educational materials and a section called "Gandalf's AI Security Vault" to deepen users' understanding of AI vulnerabilities. Despite the changes, the core gameplay remains intact, offering progressively difficult levels that teach AI security concepts. Gandalf has gained traction among leading tech companies and educational institutions, highlighting its impact on the AI security landscape. The platform's success is further recognized through its inclusion in Microsoft's PyRIT toolkit and coverage in prominent media outlets. As Lakera continues to innovate, new Gandalf adventures are in development, promising fresh challenges and learning opportunities for users.