Cloud Security Alliance Releases Cloud Operating System (OS) 
Security Specification Report

The first international research report to define technical requirements for cloud OS security specifications and to address their importance

SINGAPORE – May 8, 2019 – The Cloud Security Alliance (CSA), the world’s leading organization dedicated to defining and raising awareness of best practices to help ensure a secure cloud computing environment, today released its latest research report, Cloud Operating System (OS) Security Specification. The whitepaper, announced at the annual CSA APAC Summit held in Singapore today, aims to define the technical requirements of cloud OS security specifications, specifically the security functions and requirements (e.g. network, virtualization, data and management security) needed to maintain the smooth operation of the system, protect the data in the cloud, and provide secure and trusted cloud computing services to the cloud service customer

“This is an important step for the cloud computing industry. It will help the industry enhance the security foundation of cloud computing, especially as a reference for the private cloud customer to choose a secure cloud infrastructure vendor,” said Xiaoyu Ge, Co-Chair of the Cloud Component Specifications Working Group and Senior Security Standards Manager at Huawei.

Authored by the CSA’s Cloud Component Specifications Working Group, the paper addresses the importance of specifying the technical security requirements of cloud OS. [Information security management systems (ISMS) are outside of the scope for this specification.] Currently, whereas the majority of standards related to cloud computing focus on ISMS, there is a lack of internationally recognized technical security specifications for cloud OS.

“This paper is pertinent in helping to clarify and specify technical security requirements of cloud OS that both cloud service providers and users can refer to in order to strengthen their security posture and guard against security threats,” said Dr. Hing-Yan Lee, Executive Vice President of Cloud Security Alliance APAC. “CSA believes the industry will benefit from such specifications and related certifications in order to regulate security requirements for the cloud OS to prevent future security threats.”

The whitepaper builds on the foundation provided by ISO/IEC 17788, ISO/IEC 19941, ISO/IEC 27000, NIST SP 500-299, and NIST SP 800-144 in the context of cloud-computing security. Security properties and functionalities presented by cloud service providers such as AWS, Google Cloud, Huawei and Microsoft Azure are referenced in this document. While the CSA research artifact “Security Guidance for Critical Areas of Focus in Cloud Computing is one of the key baseline references in specifying this document, it differs from the other in that it takes the additional step to focus on a specific component in cloud computing—cloud OS.

CSA would like to extend thanks to the members of the Cloud Component Specifications Working Group, as well as to those who have contributed to the whitepaper in an effort to create a more inclusive and safer cloud community.

Learn more about the Cloud Components Specifications Working Group. Those interested in contributing to the Working Group’s body of knowledge are invited to join the group.

About Cloud Security Alliance

The Cloud Security Alliance (CSA) is the world’s leading organization dedicated to defining and raising awareness of best practices to help ensure a secure cloud computing environment. CSA harnesses the subject matter expertise of industry practitioners, associations, governments, and its corporate and individual members to offer cloud security-specific research, education, training, certification, events, and products. CSA activities, knowledge, and extensive network benefit the entire community impacted by cloud — from providers and customers to governments, entrepreneurs, and the assurance industry — and provide a forum through which different parties can work together to create and maintain a trusted cloud ecosystem. For further information, visit us at, and follow us on Twitter @cloudsa.

Media Contacts
Kari Walker for the CSA
ZAG Communications
[email protected]

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