Cloud governance is about ensuring that an organization’s use of cloud services is secure, efficient, and aligned with business goals and regulatory requirements. For a Chief of Staff (CoS), Enterprise Architecture (EA) is an essential tool for evaluating cloud readiness, identifying risks, and managing the transition to the cloud. EA models provide an overview of current and future system landscapes, facilitating decisions about which services are suitable for the cloud and how to integrate them. In Sweden, it is particularly important to consider GDPR and other data protection laws in cloud strategies. EA helps CoS ensure that data management, access, and security meet Swedish and European requirements. By involving IT, legal, and business departments in governance, CoS can create a robust and embedded cloud strategy that supports the organization’s digital development.