Will Time Machine encrypt the entire backup disk?

Discussion in 'macOS' started by Russell Bell, Mar 10, 2016.

  1. Russell Bell macrumors newbie

    Jan 4, 2014
    I want to backup my computer to my NAS (Synology). The hard drive isn't partitioned, but I did create a separate user account for Time Machine so it does not use up all my space. If I chose to encrypt backups - will Time Machine encrypt the whole drive (which I use for other things) or just the backups?
  2. Crzyrio macrumors 65816

    Jul 6, 2010
    Where are you seeing this option to encrypt backups?
  3. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
    No, it won't encrypt the drive at all. What TM does on a networked backup like that is it creates what is called a sparse bundle image and that sparse bundle file itself is encrypted. So the disk itself is not really encrypted at all, just the sparse bundle sitting on the disk is encrypted.
    --- Post Merged, Mar 15, 2016 ---
    If you open TM preferences and click the button to select a backup disk you will see the checkbox encryption option.

    Screen Shot 2016-03-15 at 8.40.42 AM.png
  4. Russell Bell thread starter macrumors newbie

    Jan 4, 2014
    Thank you - just what I was looking for.

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