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The advantages of filesystem-level encryption include:
* flexible file-based [[key management]], so that each file can be and usually is encrypted with a separate encryption key
* individual management of encrypted files e.g. incremental backups of the individual changed files even in encrypted form, rather than backup of the entire encrypted volume{{clarify|how it differs from a _non-crypto_ incremental-backup, please... and the purpose (e.g. importance of backing up to another encrypted physical-disk so data remains secure but a lost token, lost disk, etc doesn't make the data irretrievable?)}}
* [[access control]] can be enforced through the use of [[public-key cryptography]], and
* the fact that [[key (cryptography)|cryptographic keys]] are only held in memory while the file that is decrypted by them is held open.
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