MongoDB's security champions program is a successful initiative that aims to influence developers to prioritize application security through transparency, exclusivity, incentives, and a positive security culture. The company recognized the importance of executive buy-in and recruited highly engaged security champions who are empowered to drive security awareness across various departments. By giving security champions the freedom to choose which events they want to attend and providing them with opportunities to influence the security roadmap, MongoDB has created a sustainable program that is now integrated into all areas of the organization.