Prevent Mass Group Modifications

Hello everyone,

     I am looking for a way to prevent the mass modification of mks domain groups.  In the last month, I have had to restore the membership table multiple times because all the users were removed from an access group.  We are setting up a job to duplicate the table locally so at least the restore will not take as long, but this still requires a bounce and that is difficult to schedule. 

Any suggestions are appreciated.

Thank you,

Paul Hartwig