I'm trying to deny crontab to group but I had no success so far.
Nor I saw how to do it, or even discussions about it.
Is it possible to deny crontab to groups instead of users?
Imagine if you have 10 users, and want to deny access to 7. As far as I can tell, there is only two options. deny 7 or allow 3. the same applies if you have 100 000 users and want to deny 70 000. either you deny 70 000 or allow 30 000.
this is not practical at all and I believe that should be some kind of workaround.