I am trying to sell my MacBook Pro 2011 and want to erase the SSD for good. It’s running High Sierra. Despite what Apple says, I read it’s better to have FileVault turned on and then erase the machine.
Unfortunately, before I realised I should have done this, I had already erased the machine without FileVault on at all. After reading these articles I then turned on FileVault, (effectively had a blank macOS without any files) which generated a key, then I erased it again. However, when I went to erase it the second time via Internet Recovery Mode (I don’t want to re add my iCloud password to reinstall macOS), it certainly said the drive was AFPS (encrypted) where the word encryption was new to me, however it didn’t ask me to “unlock” the SSD at all. I was just able to click erase and it just said something like “are you sure you want to do this?” And as per usual I formatted it back into the usual AFPS format. The now new macOS has FileVault turned off again.
Now I’m concerned that the FileVault didn’t even work given I was able to erase and format the SSD without a passcode or key despite FileVault being on. Shouldn’t it stop me from doing these sorts of things by asking for a key? Note I never used FileVault before this and erased it once without having FileVault, so did I stuff up the process?