Describe the data classification scheme used in the personnel security clearance structure that companies use to ensure the confidentiality of information is properly maintained. For academic writing, the discussion of the clearance structure should be used to develop a well$-$structured paper that flows between topics of authorized levels of classification or the need$-$to$-$know principle. Describe the various aspects of the classification structure of how data integrity is protected. Think in terms of how such a structure reduces risks to data loss or corruption.