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Some software formats a hard drive by deleting the FAT or file allocation table, which holds information about the beginning of a file and its size. If the FAT was erased, other software wouldn’t be able to recall a file or documents had been written in that hard drive.
Hackers would be able to retrieve
original files with FAT erased by showing all data in the hard drive and try to
reconstruct the erased FAT.
A better format would be erasing
many tracks of each file in the hard drive including FAT. Thus files would be
fragmented or unreadable with reconstructed FAT.
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