How to securely wipe an external HD

Discussion in 'Mac Basics and Help' started by yani2k8, Jun 20, 2010.

  1. macrumors member

    yani2k8

    Joined:
    Sep 13, 2008
    Location:
    UK
    #1
    Hi

    I'm taking my external HD back to Apple tomorrow so I need some help wiping it in a way that data cannot be recovered by somebody else. I know the chances of Apple going through it are probably zero but I want to do it just in case because I have some really sensitive information on here.

    So basically, if I perform an ordinary format using Disc Utility, surely the data can easily be recovered? So what should I use? Any good software out there that will do that?

    Any tips and suggestions welcomed!

    Thanks in advance!
     
  2. Moderator emeritus

    sushi

    Joined:
    Jul 19, 2002
    Location:
    キャンプスワ&#
    #2
    Using Disk Utilities, go to erase the HD.

    You will see a button at the bottom of the dialog that shows Security Options. Click on it and then select the level that you want such as 1 pass or 7 passes.
     
  3. macrumors Core

    miles01110

    Joined:
    Jul 24, 2006
    Location:
    The Ivory Tower (I'm not coming down)
    #3
    7 Pass erase makes it not worth Apple's time to actually try and recover anything.
     
  4. thread starter macrumors member

    yani2k8

    Joined:
    Sep 13, 2008
    Location:
    UK
  5. macrumors 68000

    Joined:
    Mar 20, 2009
    Location:
    Near London, UK.
    #5
    How do you know? :D
     

Share This Page