A user has highly confidential information on an old hard drive. Which of the following methods would BEST ensure that the data can never be recovered?

The correct answer is C. Degaussing tool. A degaussing tool exposes the hard drive to an extremely powerful magnetic field, completely and permanently destroying all magnetic data patterns on the platters. This renders the drive unreadable and the data unrecoverable by any means. FORMAT /Q (A) is a quick format that…

Hardware

Question

Options

AFORMAT /Q
BOverwrite program
CDegaussing tool
DLow level format

How the community answered

(46 responses)

A
7% (3)
B
2% (1)
C
83% (38)
D
9% (4)

Explanation

A degaussing tool exposes the hard drive to an extremely powerful magnetic field, completely and permanently destroying all magnetic data patterns on the platters. This renders the drive unreadable and the data unrecoverable by any means. FORMAT /Q (A) is a quick format that only removes file system pointers, leaving underlying data intact and easily recoverable. An overwrite program (B) is effective but may leave residual data recoverable with advanced forensic techniques, especially with only a single pass. A low-level format (D) is time-consuming and, on modern drives with remapped sectors, may not reach all areas of the disk. Degaussing is the gold standard for physical magnetic data destruction.

Topics

#degaussing#data destruction#hard drive sanitization#data security

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