Hello,
I am selling an old MacBook Pro and was wondering what procedures you follow to format and erase all sensitive data?
Thanks for the input
Hello,
I am selling an old MacBook Pro and was wondering what procedures you follow to format and erase all sensitive data?
Thanks for the input
This article gives a whole bunch of options for several situations.
I myself would probably use filevault to encrypt the drive, and do a āquickā wipe on my macbook pro.
That should be enough, thatās what Apple asks you to do if you are returning back a Mac for TradeIn. Make sure to sign it out of iCloud, and see if you are using this device to authorize purchases, make sure to disconnect it from iTunes and different services.
Also if you have license per seat, sometimes it is difficult to revoke a seat if you do not have the original hardware. So check that as well.
From what Iāve read it would appear the terminal command mentioned in the Backblaze article:
ādiskutil secureErase freespace VALUE /Volumes/DRIVEā is not effective on SSDs.
In NIST SP 800ā88 it says Degaussing and overwriting techniques - common methods for sanitizing magnetic media - are not applicable for flash memory devices. Evolutionary changes in magnetic media also have impacts on sanitization. New storage technologies, and even variations of magnetic storage, are dramatically different from legacy magnetic media.
The Department Of Defense (DoD) Media Sanitization Guidelines 5220.22M has similar language.
Thatās so true. I contacted developers to inform them prior to removing software and that worked.
Be sure to turn OFF all find my mac stuff before doing any erasing.
Assuming you have access to decently fast and unmetered Internet:
Sign out of iCloud (and Find My Mac, especially).
Boot into Recovery
Use Disk Utility to delete the boot drive and āDataā partitions.
Re-Install macOS
Unless you have government secrets on your computer, that should be sufficient.
Since I always use encrypted file systems (and within the encrypted file system thereās added encryption for really sensitive stuff), a simple ānuke and paveā is good enough for me.
Thank you for all the replies. Followed the advice and encrypted drive, logged out of all accounts, formatted and re-installed.