When copies of classified information are no longer valuable or too many copies exist, what steps should be taken to destroy them properly? Why?

What will be an ideal response?

When copies of classified information are no longer valuable or too many copies exist, care should be taken to destroy them properly, usually after double signature verification. Documents should be destroyed by means of shredding, burning, or transfer to a service offering authorized document destruction. Policy should ensure that no classified information is inappropriately disposed of in trash or recycling areas. Otherwise, people who engage in dumpster diving, the retrieval of information from refuse or recycling bins, may compromise the security of the organization's information assets.