FileVault or no, unless you’re in control of the storage hardware, you can’t guarantee erasure. Thinking about it a bit, it occurs to me that the pre-T2 issue that storage cannot be easily erased is probably the bigger concern. It may not have looked like a major new feature in Monterey, but you’ll recognise it as one when you’ve used it. As Big Sur and Monterey feature signed and sealed System volumes (SSV), you know that the System volume hasn’t been and can’t be tampered with, so it serves no purpose reinstalling that.ĮACAS is a thoroughly practical tool, as well as an elegant demonstration of the benefits of the SSV and Secure Boot. Its strength in many cases is that it leaves the System volume alone, so doesn’t require reinstalling macOS.
HOW TO SECURE DELETE ON MAC SIERRA FULL
And it’s a good alternative to some situations in which you might previously have put an M1 Mac into DFU mode and performed a full restore. For those who like to give their Mac a really ‘deep clean’, it’s as thorough as you need. You might also choose to use it on a Mac which you travel with, after visiting areas where your Mac could have unwanted software installed on it. If you employ someone who uses a Mac, and they leave, this is the perfect way to prepare their Mac for their successor. There are other situations in which it’s now the preferred way to clean your Mac thoroughly. Not only is it simple, quick and reliable, but the Mac’s new user will then receive your old Mac in factory condition, as new.ĮACAS is more versatile too. I’ve recently done this with my old M1 MacBook Pro 13-inch. You can start this process simply by opening System Preferences, where you’ll find the new command in the app menu. The penalty for getting it wrong could also be serious, in handing that Mac’s next user your sensitive data. These are fiddly and time-consuming processes, with a significant risk of error. You clearly don’t want to overwrite it all, rather to destroy its encryption keys by erasing its boot volume group, which then requires you to reinstall macOS and shut the Mac down when that reaches the personalisation stage. The penultimate step remains the most controversial, particularly when the internal storage is an SSD. remove that Mac from your account in the Apple ID pane.disable Find My Mac and Activation Lock.In the most recent, I detail the following steps:
HOW TO SECURE DELETE ON MAC SIERRA HOW TO
I have, as you might have expected, several articles here about how to prepare a Mac to be passed on to someone else. What you may not have realised yet is how powerful and useful this is. If you have an Intel Mac with a T2 chip or one of the M1 series Macs, you’ll no doubt be aware of the introduction in Monterey of the new feature to Erase All Contents and Settings (EACAS).
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