- Moving productivity services to the cloud requires a serious consideration of security and privacy issues and technologies. Office 365 is designed to deliver the enterprise-grade security you require to move to the cloud with confidence. Our data centers are designed, built, and managed using a defense-in-depth strategy at both the physical and logical layers, and our services are engineered to be secure using the Security Development Lifecycle. Office 365 makes it easy for users and administrators to access and use data and services while following security best practices. We have built our cloud-based productivity services with you in mind, helping you embrace the advantages of the cloud on your terms and at your own pace. Learn more about the enterprise-grade security that Microsoft has provided for many years.