Jim's company regularly performs backups of their critical servers. But the company cannot afford to send backup tapes to an off-site vendor for long-term storage and archiving. Instead, Jim's company

Encrypting the backup tapes ensures that even if tapes are lost or stolen during transit, the data cannot be read without the decryption key, protecting confidentiality. Transporting them in a lock box adds a physical security control that prevents unauthorized access to the tapes themselves. Together these two controls address both logical and physical security for sensitive data in transit.

Degaussing a magnetic tape permanently erases all data stored on it, destroying the backup entirely and making it useless as a recovery resource.

Hashing the backup tapes only provides an integrity check to detect unauthorized modification, but does not encrypt or protect the confidentiality of the data if the tapes are intercepted.

Using a courier is a method of transport rather than a security control, and does not provide the same level of physical containment and tamper-evidence as a lock box during transit.