This document discusses data security in the cloud. It notes that encryption, along with centralized policy and key management, are essential for protecting sensitive data in cloud environments and meeting regulatory requirements. Centralized key management provides benefits like secure key storage, lifecycle management, separation of duties, and compliance with standards. Customers can choose between managing keys on-premise or using a key management as a service provider, but must consider tradeoffs in risk, cost, and separation of duties. Encryption combined with proper key management makes data more secure when migrating to cloud computing.