Deloitte's Cyber Intelligence Centre (CIC) has adopted the Elastic Stack to enhance its multitenant cloud-based Managed Security Service Provider (MSSP) platform by leveraging its capabilities for cyber data lakes and threat hunting. This collaboration, which began in 2013, has evolved significantly, with Deloitte utilizing Elastic's machine learning features to detect new threats and enhance their cybersecurity offerings. In 2019, Deloitte and Elastic signed a multi-year Managed Service Provider Agreement to ensure long-term access to Elastic's commercial features, supporting the CIC's goal of expanding its threat analytics platform globally. The partnership has allowed Deloitte to integrate Elastic into their ecosystem of detection and response capabilities, including SIEM and security orchestration services, and aims to deliver new insights by combining data from various domains, ultimately reducing cyber risk for their clients.