Enabling FileVault encrypts all files no matter their age?

Hi there I have an macbook pro running 14.6.1

I just enabled FileVault


Does that mean all files on this machine are now encrypted? Even the files that date back to the first files on the system ssd drive?


Posted on Aug 20, 2024 9:54 PM

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Posted on Aug 21, 2024 9:16 AM

<< Does that mean all files on this machine are now encrypted? >>


Not exactly.


It means that the process of converting EVERY file on the drive has STARTED. Each and every file in turn will be read in un-encrypted, and written back out encrypted. This process will take four hours to a few days of awake but not-too-busy time. if your Mac sleeps, or you do a Restart, it will just delay the completion.


While it is doing the conversion, MOST things work in the half-encrypted state. One that does not is software update or a new Install of MacOS. Another is attempting to change the state of encryption again or say STOP. It WILL run to completion.

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Question marked as Top-ranking reply

Aug 21, 2024 9:16 AM in response to Noah Wallach

<< Does that mean all files on this machine are now encrypted? >>


Not exactly.


It means that the process of converting EVERY file on the drive has STARTED. Each and every file in turn will be read in un-encrypted, and written back out encrypted. This process will take four hours to a few days of awake but not-too-busy time. if your Mac sleeps, or you do a Restart, it will just delay the completion.


While it is doing the conversion, MOST things work in the half-encrypted state. One that does not is software update or a new Install of MacOS. Another is attempting to change the state of encryption again or say STOP. It WILL run to completion.

Aug 22, 2024 5:44 PM in response to Noah Wallach

If you are using a 2018+ Mac, then Filevault works differently. With a 2018+ Mac, the data on the internal SSD is already hardware encrypted at all times. Enabling Filevault on a 2018+ Mac adds another layer of protection which is completed almost immediately. See these Apple articles regarding Filevault:

How does FileVault work on a Mac? - Apple Support


Protect data on your Mac with FileVault - Apple Support

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Enabling FileVault encrypts all files no matter their age?

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