A simple task: deauthorise an M1 Mac mini to hand on, then use EACAS to wipe it ready for its next user. But deauthorisation wouldn’t work.
erase
If you plan to trade in or pass on your old Mac when you upgrade to a new one, there are pitfalls in ensuring you don’t lose any data, while ensuring your old Mac is completely wiped.
What does the terse phrase Erase Mac mean? If you think that it means completely erase your Mac, […]
Should you install, re-install, or clean (re-)install macOS? Why, how to, and what they entail.
How can I make the files on a dead hard disk unreadable before I discard it?
What to do to prepare an old Mac for a new home, or for scrap.
The Eclectic Light Company 