We recently upgraded our SBS 2003 server to SBS 2008. Since then we've discovered that all admin shares on all machines (servers and workstations) are accessible to all domain users from any other machine.
I've confirmed that the domain user group isn't in the administrator or domain admin groups or anything silly like that. Also all of our domain users do NOT have local admin privileges.
As far as I can tell there isn't anywhere to specifically modify admin share permissions.
Any idea what's causing this & how to fix it?