Dealing with multiple ACLs

Hi All,

I have been working through an ask to hide attachment of certain tables from admin users. (Due to sensitive info)

Obviously the way to achieve this is on ACLs, but for some reason on my instance there are 24 different "read" ACLs which one way or the other give access to the attachments for admins.

Any best practise on how to deal with this?

I have tried to create a new ACL specific to my table but does not seem to work.