SecurityIntroductionDMs often work on classified or sensitive data. Graphics and text createdelectronically and stored on disks require protection. The procedures forprotecting and marking disks, disk drives, and workstations differ slightlyfrom what you are familiar with for hard copy data. Security procedures forelectronic data is found in the Department of the Navy ADP Security Manual,OPNAVINST 5239.1.Automateddata processingsecurity officer(ADPSO)Your command will have an automated data processing security officer(ADPSO) that reports to the commanding officer concerning the protection ofelectronically generated data. The ADPSO is responsible for the physicalsecurity of each computer workstation. The protection of each workstationinvolves physical security, physical access control, data file protection, andnatural disaster protection. Seek out your ADPSO and make sure yourworkstation complies with Navy and command regulations for the protectionof classified material.SecurityThe three levels of data processed electronically are Level I, Level II, andLevel III. If your command processes Level I and/or Level II data, it mustprovide a specific degree of protection. The following table defines the threelevels of data:Continued on next page3-39
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