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Operating systems do not actually remove the content of a file when the file is deleted, even after emptying the trash or removing the file from the command line.
**Les systèmes d'exploitation n'effacent pas le contenu d'un fichier lorsque
celui-ci est supprimé**, même après avoir vidé la corbeille ou supprimé explicitement
le fichier, avec une ligne de commande par exemple.
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**Operating systems do not actually remove the contents of a file when ithe file is
deleted**, even after emptying the trash or explicitly removing the file, from
the command line for example.
.
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<h2 id="delete">Deleting a file does not erase its content</h2>
 
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See also [[!wikipedia Data_erasure desc="Wikipedia: Data Erasure"]].
<p class="quoted-from">Source [[!wikipedia_fr Rémanence_des_données
desc="Wikipédia: %s"]].</p>
2 years ago
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<h1 id="risks">Limitations of file deletion</h1>
<h1 id="why">Pourquoi utiliser l'effacement sécurisé ?</h1>
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<h1 id="why">Why use securrisks">Limitations of file deletion?</h1>
2 years ago
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[[!toc levels=2]]
[[!toc levels=1]]
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[[!toc levels=12]]
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To better protect from data recovery, use encrypted volumes, overwrite the entire device, or disintegrate it physically.
 
2 years ago
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Tails previously included tools to *wipe* files and available disk space. We removed these tools from Tails 6.0 (February 2024), because we think that they are not reliable enough on modern storage devices, such as USB sticks and Solid-State Drives (SSDs).
 
2 years ago
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[[!meta title="Securely deleting files"]]
[[!meta title="Effacement sécurisé des fichiers et nettoyage de l'espace disque"]]
2 years ago
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[[!meta title="Securely deleting files and clean diskspace"]]
2 years ago
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The “wiki/src/doc/encryption_and_privacy/secure_deletion.fa.po” file was changed. 2 years ago
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For top secret documents, the National Security Agency ([[!wikipedia NSA]]) of the USA recommends disintegration into particles of 2 mm. This can be achieved using a [good quality household blender](https://commons.erau.edu/jdfsl/vol16/iss2/1/).
 
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It is unreliable to break the device into a few pieces or burn it with wood fire.
 
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As a last resort, physically destroying the device gives the strongest guarantee against data recovery.
 
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<h2 id="destroy">Physically destroy the device</h2>
 
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Click **Format** to confirm.
 
2 years ago
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In the confirmation dialog, make sure that the device is correct.
 
2 years ago
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Click **Format**.
 
2 years ago

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