The use of personal accounts for OneDrive synchronization must be disabled.

From Windows 10 Security Technical Implementation Guide

Associated with: CCI-000381

SV-96851r1_rule The use of personal accounts for OneDrive synchronization must be disabled.

Vulnerability discussion

OneDrive provides access to external services for data storage, which must be restricted to authorized instances. Enabling this setting will prevent the use of personal OneDrive accounts for synchronization.

Check content

If the following registry value does not exist or is not configured as specified, this is a finding. Registry Hive: HKEY_CURRENT_USER Registry Path: \Software\Policies\Microsoft\OneDrive\ Value Name: DisablePersonalSync Value Type: REG_DWORD Value: 0x00000001 (1)

Fix text

Configure the policy value for User Configuration >> Administrative Templates >> OneDrive >> "Prevent users from synchronizing personal OneDrive accounts" to "Enabled". Group policy files for OneDrive are located on a system with OneDrive in "%localappdata%\Microsoft\OneDrive\BuildNumber\adm\". Copy the OneDrive.admx and .adml files to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.

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