A cybersecurity researcher purchased several used laptops at an auction. While the hard drives appeared to be blank, the researcher was able to recover all the data that previously existed on the…

The correct answer is A. Standard format. A standard (quick) format does not erase the underlying data on a drive. It only removes the file system index - the table that records where files are stored - making the storage space appear available. The raw data blocks remain on the disk until overwritten by new data…

Hardware

Question

A cybersecurity researcher purchased several used laptops at an auction. While the hard drives appeared to be blank, the researcher was able to recover all the data that previously existed on the drives. Which of the following methods did the original owner MOST likely use to clear the drives' contents?

Options

AStandard format
BDrive degaussing
CDisk encryption
DDrive wipe

How the community answered

(35 responses)

A
60% (21)
B
23% (8)
C
11% (4)
D
6% (2)

Explanation

A standard (quick) format does not erase the underlying data on a drive. It only removes the file system index - the table that records where files are stored - making the storage space appear available. The raw data blocks remain on the disk until overwritten by new data, making full recovery straightforward with common forensic or data recovery tools. Drive degaussing (B) uses a powerful magnetic field to destroy data on magnetic media, making recovery impossible. Disk encryption (C) would render recovered data unreadable without the key. A proper drive wipe (D) overwrites all sectors with random data, also preventing recovery. Standard format is the weakest and most commonly misunderstood method.

Topics

#data sanitization#drive formatting#data recovery#disk security

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