Other Technical Discussions A place for technical discussions NOT related to Porsche or BMW. Other makes, home DIY, etc. |
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#1
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"Securely" Erase Mac SSD using Filevault
Hi...a friend would like to sell their MacBook Pro, and they want to make sure all their financial data is erased as best as can be. It has an SSD, and they would like to do a little more than simply using Erase in Disk Utility. They believe they can do the following:
1) Enable Filevault, and let the drive encrypt 2) Boot into Recovery Mode 3) Go to File, select the disk and click Unlock 4) Click Erase in Disk Utility My questions: is step 3 still required? Once you have erased the drive and reinstalled the OS, will it still prompt you for a Filevault password?
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_______________________________________________ Tim M '00 C5 Corvette FRC track car '86 944 N/A (aka Doublemint) - Past '20 Ford Expedition Max Last edited by RedOctober; 03-09-2018 at 06:33 AM. Reason: Fixed the best typo ever |
#2
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Yes, step 3 is required, at least it has been when I've needed to erase a file vault volume in disk utility. Basically the file vault key gets deleted, makes the data useless.
after you reinstall the OS, file vault will be turned off, unless you turn it on again. The system will not prompt you for a password.
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Todd -- 18 GT3 (VG) Gone 18 718 Cayman GTS (GT Silver) 14 981 Cayman S (white) 15 991.1 GT3 11 997.2 GT3 96 993 Targa 96 993 C2 tracker 00 986 Boxster S 99 986 Boxster |
#3
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Best. Typo. Ever.
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ed 2016 GT4 2005 Lotus Elise 1994 RX-7 R2 |
#4
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If the disk is encrypted with Filevault, just reinstall the OS as a fresh install. There is no way for a new owner to recover the data. But if it's not already encrypted, it can take a long time, depending on processor speed and size of drive, to encrypt the disk. Spinning multi-TB disk can take a couple of days but smaller solid state should take much less.
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Peter (not "Pete") K. 2016 Cayman S 1999 Miata ("SM") race car 2016 Toyota Highlander--tow vehicle/wife's DD 2017 VW GTI SE (DD) Gone and missed: 1992 Miata ("SSM") race car 2009 911 C2S Coupe 2004 Toyota Prius - sold to son's girlfriend 2006 Dodge Durango 2003 Acura MDX 86 Black 911 Coupe race car 86 Gold 911 Targa 82 WineRedMetallic 911 Targa |
#5
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Quote:
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Todd -- 18 GT3 (VG) Gone 18 718 Cayman GTS (GT Silver) 14 981 Cayman S (white) 15 991.1 GT3 11 997.2 GT3 96 993 Targa 96 993 C2 tracker 00 986 Boxster S 99 986 Boxster |
#6
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Quote:
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_______________________________________________ Tim M '00 C5 Corvette FRC track car '86 944 N/A (aka Doublemint) - Past '20 Ford Expedition Max |
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