*Keyfiles can be damages or deleted (accidentally or be design) preventing access
*Keyfiles can be damages or deleted (accidentally or be design) preventing access
*Storage media on which the keyfile is stored can be damaged or destroyed, making the keyfile potentially inaccessible, and therefore preventing access
*Storage media on which the keyfile is stored can be damaged or destroyed, making the keyfile potentially inaccessible, and therefore preventing access
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==Notes==
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*Keyfiles sometimes use the file extension "key" but this can be deceptive since ".key" has other uses as well, such as software license key files.
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*Keyfile are usually generated for the purpose. However, in some cases, existing files (images, documents, etc.) can be used instead.