Software, ContinuedDisk securitymarkingsTo avoid confusion, set aside groups of disks for recording classified data ateach security level. Mark each disk or diskette with stick-on labelsidentifying the overall security classification and permanently assignedidentification numbers. When you declassify and degauss disks, remove allexternal labels indicating the classification unless you immediately use thedisks to store information of the same classification level.Figure 8-1 shows how the different levels of classification should be clearlymarked on the exterior labels of disks.Figure 8-1.—Classification markings clearlymarked on disk labels.MediadispositionMagnetic media, such as disks, eventually wear out or become damaged. Ifdisks contain classified material, degauss or erase them before destruction.Handle and dispose of printer ribbons and carbon papers used toprint/transfer classified information according to the highest classificationlevel of the data printed by that ribbon or carbon. Follow the requirementsand instructions outlined in the Department of the Navy, Information andPersonnel Security Program Regulation, OPNAVINST 5510.1.8-11
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