when classified information is in an authorized individuals hands, why should the individual use a classified document coversheet

Following are the answer to this question:

To inform holders of the existence of data.  To avoid misuse by unapproved employees of confidential information.

Explanation:

The classified information is also known as sensitive information, which is access to specific classes of individuals is constrained by rule or policy. It manages the classified documents or accesses the data.

It's also a formal security clearance, that has been required for the satisfying background research that is needed for the screening process.It tells the owners that confidential data is provided and avoid accidental disclosure by the unauthorized staff of classified information.

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