Clarify on data encryption for managed endpoints

Author: dem108

articles/machine-learning/concept-data-encryption.md

@@ -10,7 +10,7 @@ ms.topic: conceptual
 ms.author: jhirono
 author: jhirono
 ms.reviewer: larryfr
-ms.date: 12/20/2022
+ms.date: 03/07/2023
 ---
 
 # Data encryption with Azure Machine Learning
@@ -129,6 +129,8 @@ The OS disk for each compute node stored in Azure Storage is encrypted with Micr
 
 Each virtual machine also has a local temporary disk for OS operations. If you want, you can use the disk to stage training data. If the workspace was created with the `hbi_workspace` parameter set to `TRUE`, the temporary disk is encrypted. This environment is short-lived (only during your job,) and encryption support is limited to system-managed keys only.
 
+Managed online endpoint and batch endpoint use machine learning compute in the backend, and follows the same encryption mechanism.
+
 **Compute instance**
 The OS disk for compute instance is encrypted with Microsoft-managed keys in Azure Machine Learning storage accounts. If the workspace was created with the `hbi_workspace` parameter set to `TRUE`, the local OS and temporary disks on compute instance are encrypted with Microsoft managed keys. Customer managed key encryption is not supported for OS and temporary disks.