When you tap delete on your Android phone, a file might disappear from your view. But it's not really gone. You've erased the index of that file, but the file itself is still in the phone's storage.

This article explains how to erase and factory reset your Mac if you plan to give it away, sell it, or trade it in. Apple silicon Macs and Intel Macs with a T2 security chip (2017-2020 models) have an ...