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1
Information security computer attacks at Department of Defense pose increasing risks : statement of Jack L. Brock, Director, Defense Information and Financial Management Systems, A...
Published 1996Government Document Microfilm Book -
2
Information security computer hacker information available on the Internet : statement for the record of Jack L. Brock, Jr., Director, Defense Information and Financial Management...
Published 1996Government Document Microfilm Book -
3
Critical infrastructure protection fundamental improvements needed to assure security of federal operations : statement of Jack L. Brock, Jr., Director, Governmentwide and Defense...
Published 1999Government Document Microfilm Book