Your installation procedure should also specify the vendor's security-related updates or patches that are to be applied to the operating system. Determine how the computer will be connected to your network. There are concerns relating to network connections that can affect the configuration and use of any one computer. Many organizations use a broadcast technology such as Ethernet for their local area networks. In these cases, information traversing a network segment can be seen by any computer on that segment.
Many organizations forbid users to attach a modem to a workstation.
We recommend that you do not allow users to attach a modem to their workstation any time it is connected to your internal network. It is also important to document the use of modems on a network server. As a general rule, do not attach modems to any servers other than servers whose purpose is to provide dial-in access. Some vendors may require direct modem access to provide some level of service. In this case, we recommend establishing procedures to enable the vendor to access the server via modem, and disconnecting the modem when it is not in use.