Azure cost optimisation, governance, and security are among the biggest challenges facing organisations running workloads in Microsoft Azure. Many businesses migrate to the cloud expecting lower costs and improved flexibility, only to discover rising Azure spend, security gaps, and a lack of governance controls. In this article, we explore how Azure landing zones, cloud governance frameworks, FinOps best practices, and Azure security tools can help organisations reduce costs, improve operational efficiency, and build a secure foundation for AI innovation. We also share insights from our recent Microsoft-hosted events, where Azure experts discussed common cloud adoption mistakes, optimisation opportunities, and real-world customer success stories.