[ActiveDir] Switching distibution lists to security groups

[Huber, Rob \(HNI Corp\)]

Hello,   This may be an easy answer, but I want to get feedback anyway.  What are the potential problems/issues/concerns with switching distribution groups to security groups?  Our Sharepoint group has rolled out Sharepoint site permissions based on DLs.  I believe that DLs should be used for DLs and security groups should be used for security (or permissions in this case) and have encouraged them to set the permissions accordingly.  Their counter is that the site owners do not know the membership of the security groups, but know the membership of their respective groups DLs and therefore it is easier to administrate the permissions that way.  A simple fix would be to switch the DLs to security groups, however that seams a bit too simple.