An important source of vulnerability occurs at runtime, when data is in use. Developers must leverage runtime encryption technologies with effective key management to secure sensitive data. Cloud service providers (CSPs) now offer hardware platforms that enable runtime encryption solutions to be deployed in the cloud. Innovative new solutions for key management, along with an end-to-end approach to encrypting and securing data when it’s at rest, in transit, and in use, are critical, as are related functions required.”]
Source: https://www.darkreading.com/cloud/solving-the-cloud-data-security-conundrum