Which data security control is most effective for protecting the confidentiality of data on backup media during transport to a third-party?

Which data security control is most effective for protecting the confidentiality of data on backup media during transport to a third-party?

• A. Hash totals
• B. Bonded couriers
• C. Tamper-resistant packaging
• D. Encryption

Answer: (D)

The most effective data security control for protecting the confidentiality of data on backup media during transport to a third-party is encryption. Encryption ensures that the data remains unreadable to anyone who does not have the appropriate decryption key. This means that even if the backup media were intercepted during transit, the information contained within it would be secure and unintelligible to unauthorized individuals. This is crucial for maintaining confidentiality, especially for sensitive information. While other options such as tamper-resistant packaging and bonded couriers provide additional layers of security, they do not inherently protect the data itself from being accessed. Tamper-resistant packaging can deter physical tampering, and bonded couriers can ensure that the chain of custody is maintained, but if the data is not encrypted, it can be exposed if the media is compromised. Encryption directly addresses the confidentiality of the data whether in transit or at rest, making it the best choice to ensure that sensitive information remains protected during transport to third parties.

The most effective data security control for protecting the confidentiality of data on backup media during transport to a third-party is encryption. Encryption ensures that the data remains unreadable to anyone who does not have the appropriate decryption key. This means that even if the backup media were intercepted during transit, the information contained within it would be secure and unintelligible to unauthorized individuals. This is crucial for maintaining confidentiality, especially for sensitive information.

While other options such as tamper-resistant packaging and bonded couriers provide additional layers of security, they do not inherently protect the data itself from being accessed. Tamper-resistant packaging can deter physical tampering, and bonded couriers can ensure that the chain of custody is maintained, but if the data is not encrypted, it can be exposed if the media is compromised.

Encryption directly addresses the confidentiality of the data whether in transit or at rest, making it the best choice to ensure that sensitive information remains protected during transport to third parties.