This document is a guide that outlines the significance of hybrid cloud platforms in the banking and financial services sector. It explains how hybrid clouds combine the advantages of both public and private clouds, allowing banks to maintain sensitive data while leveraging the scalability and efficiency of public cloud resources. The guide details various use cases, such as Banco Sabadell's transition to a mobile-first approach and Westpac's enhancements in customer service. It emphasizes the importance of security, governance, and management in hybrid cloud environments, noting that banks must implement strong policies to protect data across both cloud types. Additionally, the document discusses the necessity of skilled architects to navigate the complexities of hybrid cloud architecture and the need for comprehensive operating models to minimize vulnerabilities. The guide concludes by highlighting the role of hybrid clouds in facilitating business continuity, operational scalability, and cost optimization, ultimately supporting banks in their digital transformation efforts.