That article describes how the master encryption key stored on the hdd (your password encrypts this key afaik) gets corrupted, which means the author was unable

That article describes how the master encryption key stored on the hdd (your password encrypts this key afaik) gets corrupted, which means the author was unable to recover the files on the computer even if nothing is wrong anywhere else. Now I'm not familiar with the inner workings of OS X as I don't personally use that system. However, with FDE (LUKS) on Linux, this is 100% avoidable if you backed up the LUKS Header: https://calum.org/posts/backup-your-LUKS-header-and-LVM-config https://calum.org/posts/backup-your-LUKS-header-and-LVM-conf.... This does not negate the need for a real backup tho. So you should backup your data regardless, however you want to do that.