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Controlling Access to Removable Media

By default, Windows NT allows any program to access files on floppy disks and CDs. In a highly secure, multi-user environment, you might want to allow only the person interactively logged on to access those devices. This allows the interactive user to write sensitive information to these drives, confident that no other user or program can see or modify that data. When operating in this mode, the floppy disks and/or CDs on your system are allocated to a user as part of the interactive log on process. These devices are automatically freed for general use or for reallocation when that user logs off. Because of this, it is important to remove sensitive data from the floppy or CD-ROM drives before logging off. Note: Windows NT allows all users access to the tape drive, and therefore any user can read and write the contents of any tape in the drive. In general this is not a concern, because only one user is interactively logged on at a time. However, in some rare instances, a program started by a user can continue running after the user logs off. When another user logs on and puts a tape in the tape drive, this program can secretly transfer sensitive data from the tape. If this is a concern, restart the computer before using the tape drive.

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