How to Remove All Permissions to all ‘Sensitive’ Folders and Their Sub-folders

Note: You need GAT Unlock in order to apply the following steps

To remove all permissions to all ‘sensitive’ folders and their sub-folders,
You will need to find the “Folder” you would like to apply the rule against.
You can use the “Apply custom filter” option in Drive and find the folder.
In the example below we found root folder of one user:

Click on the drop-down menu next to the folders name and select ‘Apply permission change to this folder (recursively)
The File Management options will pop up, you can remove any user as an editor/reader or change ownership down the folder tree.