ACCA Applied Knowledge · Business and Technology · Financial systems and technology
A company encrypts the customer files stored on its laptops. Which security objective is most directly supported by this measure?
Encrypting files on laptops mainly supports confidentiality. If a laptop is lost or stolen, the data cannot be read without the decryption key. Availability depends on backups and redundancy, and accuracy depends on validation and input controls, so these are not the main objective served.
- AAvailability of data during system outages
- BConfidentiality of data if a laptop is lost or stolenCorrect
- CAccuracy of data entered by staff
- DSpeed of processing transactions
Explanation
Encryption makes data unreadable without the key, so a thief cannot read it; this protects confidentiality. Availability is supported by backups and redundancy, and accuracy by input validation controls. Encryption does not improve processing speed.
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