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An organization is migrating its enterprise workloads to Microsoft Azure and reviewing security roles under the shared responsibility model. The security team needs to distinguish between the cloud provider's duties for "security of the cloud" and the customer's duties for "security in the cloud."
Which responsibility is managed exclusively by the cloud provider across all cloud service models?
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Physical security and hardware infrastructure management refers to the protection and maintenance of the physical buildings, servers, network cabling, power supplies, environmental cooling systems, and biometric perimeter controls that house cloud computing resources.
Under the shared responsibility model, the concept of "security of the cloud" encompasses the foundational physical infrastructure upon which all cloud services operate. Microsoft as the cloud provider assumes full, unshared responsibility for:
Because customers never have physical access to Azure datacenter buildings or physical host hardware, the cloud provider solely manages this layer regardless of whether the customer uses IaaS, PaaS, or SaaS.
Entrusting physical and host infrastructure protection to the cloud provider allows organizations to focus their technical staff on securing high-level assets, such as data classification, identity governance, and application architecture.