Security, regarded as a mindset and ongoing practice, extends beyond API standards, although these standards can significantly enhance the development of secure APIs when applied rigorously. The Redocly CLI Cookbook serves as a practical resource, offering reusable snippets and examples from the community to aid in API security. It emphasizes the use of HTTPS endpoints to protect data, discourages deprecated practices like HTTP Basic auth, and advocates for per-operation security settings to tailor security to each endpoint's needs. The cookbook also highlights the importance of limiting data size to prevent attacks, suggesting rules for managing string and array lengths. Users are encouraged to adapt and expand the security ruleset to fit specific needs and contribute back to the community.