Explore evolving threat models in cloud security and learn how to leverage open-source software for enhanced protection in this comprehensive conference talk. Gain insights from Cindy's personal experience and discover the importance of mental models in security practices. Delve into the journey from good to great security, addressing challenges and technical barriers along the way. Examine use cases for cloud-native security and learn how to evaluate open-source projects effectively. Understand the management of cloud-native security using open-source tools and explore various defense approaches. Conclude with valuable advice from Nick and participate in a Q&A session to deepen your understanding of cloud security best practices.