Cloud Security Alliance (CSA) has emerged to help alleviate would-be customers concerns. The group’s mission is to promote the use of best practices for providing security assurance within cloud computing. The CSA comprises dozens of cloud service providers, including three of the four big IaaS providers: Google, Microsoft, and VMware. Cloud Trust Protocol is an XML-based standard way of communicating cloud security assertions, evidence of those assertions, and affirmations. The protocol allows “transparency as a service” for privacy, security, and compliance needs.”]
Source: https://www.csoonline.com/article/2622669/csa-helps-clear-up-cloud-security-questions.html