If you are a G Suite user and are concerned that important documents could accidentally be deleted or significantly edited, you’ll want to use Google Vault. Unlike Google Drive, which doesn’t protect against mass deletions or edits, Google Vault does!
Set up is easy and it adds a layer of protection for your business-critical data.
(Note that we have been unable to successfully use Google Vault with Google Forms, the one type of document that apparently can’t be protected in this way.)
Separate login from G Suite Admin: https://ediscovery.google.com/discovery