I was shocked to learn that by typing \\[systemname]\C$ I was able to access the entire drive, including user profiles, system directories on a laptop that belongs to Win2K domain while it was connected to a workgroup at home. I later found that I was able to access any workstation in the office as easily, however with a password prompt. I was a believer that C$ was only granted to admin/system accounts. This carries great implications when connecting to a public network, how this can be resolved.