Compact discs : The procedures described in paragraph K-5e of AR 380-5 for destroying equipment
and devices, such as hard disks, can be used to destroy a compact disk as well.
Part N: Other Classified Material
When a computer is used to process classified information, there are forms of classified information
besides storage media which must be protected. Besides the floppy disks, you must also protect all
the rest of this classified material.
The work screen and the computer. When classified information is being processed, you must make
sure that any classified information which is displayed on the work screen cannot be seen by
unauthorized persons. And, when classified information is being processed, the computer and its
associated peripherals must be safeguarded as classified material, since classified information will
also be stored in internal memory. "Associated peripherals" means the monitor, the printer, and any
other computer equipment connected to the computer.
If possible, all classified processing should be done in a locked room which has no windows. This is
not always possible, and the computer you are using to process classified information may be
located in an "open" office. In the open office, the use of temporary partitions or curtains, or the
removal of unauthorized persons might be required. If the office cannot be locked, guards and "no
entry" signs will help to prevent unauthorized access.
Hard copy output: Paragraph 4-305, AR 380-5, describes the requirements and procedures for
marking classified documents produced by computer systems. Classified printouts can be marked
automatically by the system, if it has this feature, or marked manually, like marking a typed document
Miscellaneous material: A printer ribbon used to print classified information requires the same
protection as a typewriter ribbon used to type classified information.
Part O: Recommended Procedures for Processing Classified Information
Your commander, ISSO, and TASO will develop procedures for safeguarding computers which
process classified information in your unit. These are recommended procedures which should be
followed when using a computer to process classified information.
Make sure that the computer is accredited for the level of classified information to be
Physically disconnect any connection to another computer, unless the other computer is
required for the processing, and classified information is transmitted between the two by "secure
means". Chapter 4, AR 380-19, describes secure means for transmitting classified information.
Physically disconnect any peripherals, such as disk drives or printers, which are not required
for the classified processing.