InformationThis recommendation pertains to allowing iCloud backup.
iCloud backups are encrypted in transit and at rest within Apple's infrastructure, but there is no protection against restoring a backup to an unmanaged device. This allows for data leakage.
Solution1. Open Apple Configurator.
2. Open the Configuration Profile.
3. In the left windowpane, click on the Restrictions tab.
4. In the right windowpane, under the tab Functionality, uncheck the checkbox for Allow iCloud backup.
5. Deploy the Configuration Profile.