TuneUp Utilities - 2014 Manuel d'utilisateur télécharger pdf (Page 68)

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Prior to deletion, the files are overwritten with special data patterns multiple times, destroying the original

contents so effectively that even expensive examinations of the magnetic structure of the disk in a special

laboratory would not allow the data to be recovered.

Secure deletion, Gutmann method

This method, named after its inventor Peter Gutmann, overwrites the files to be deleted 35 times with random

values in a special pattern and then deletes them. This method is considered the most secure way to delete

files with software, but also takes the longest time.

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TuneUp Utilities - 2014 Manuel d'utilisateur Page 68