YOU own your SideDrawer and any information stored within it. Therefore, only people you have authorized to collaborate with your SideDrawer will have access to your important information.

You can set collaborators to have the ability to Edit (change your records), View (read but not change your information), and No Access (they'll know files exist and has been secured, but won't be able to see or edit.)

And again, you have the ability to revoke or change any of the permissions at any time.