Homework Help: Questions and Answers: A smartphone was lost at the airport There is no way to recover the device. Which of the following ensures data confidentiality on the device?
a. GPS
b. Screen lock
c. Remote wipe
d. TPM
Answer:
First, let’s understand what the question:
- A smartphone is lost at the airport.
- The device cannot be recovered.
To ensure data confidentiality on a lost smartphone, let’s analyze each option provided:
Given Options: Step by Step Answering
a) GPS
- GPS is used for location tracking.
- GPS does not contribute to data confidentiality. It helps to locate the device but does not protect or secure the data on the device.
b) Screen lock
- Screen lock provides a first layer of protection by requiring a password, PIN, pattern, or biometric authentication to access the device.
- Screen lock helps protect the data from unauthorized access but can potentially be bypassed by advanced techniques or hardware hacking.
c) Remote wipe
- Remote wipe allows the device owner to remotely erase all data on the smartphone, usually via an internet connection or SMS.
- Remote wipe is a strong measure for ensuring data confidentiality. If the device is lost and cannot be recovered, erasing all data remotely ensures that sensitive information is not accessible to anyone who finds the device.
d) TPM
- TPM (Trusted Platform Module) is a hardware-based security feature used mainly in PCs and some smartphones to store encryption keys securely.
- TPM can enhance data security by ensuring encryption keys are stored securely. However, on its own, it does not provide a direct method for erasing or protecting data after the device is lost. It not the best option for this specific situation.
Final Answer
Based on the above analysis, the option that best ensures data confidentiality for a lost device that cannot be recovered is:
c. Remote wipe
Remote wipe allows the owner to delete all sensitive data from the device, even if they can’t physically access it, thus preventing unauthorized access to the information.
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