Update concept-dev-box-architecture.md

Author: RoseHJM

articles/dev-box/concept-dev-box-architecture.md

@@ -46,7 +46,7 @@ Microsoft Dev Box uses the *hosted on-behalf* architecture, which means that the
 
 Microsoft Dev Box manages the capacity and in-region availability in the Microsoft Dev Box subscriptions. Microsoft Dev Box determines the Azure region to host your dev boxes based on the network connection you select when creating a dev box pool.
 
-Microsoft Dev Box encrypts the disk by default to protect your data. You don't need to enable BitLocker, and doing so can prevent you from accessing your dev box.
+To protect your data, Microsoft Dev Box encrypts the disk by default using a platform-managed key. You don't need to enable BitLocker and doing so can prevent you from accessing your dev box.
 
 For more information about data storage and protection in Azure services see: [Azure customer data protection](/azure/security/fundamentals/protection-customer-data).