You may already know that “deleting” a file does nothing of the sort. Securely erasing drives before you sell a computer keeps your personal information from falling into the wrong hands. Good news: it’s easier than ever to fully erase data.
SSDs – now the standard in Ultrabooks and Macs – are a little different. Thanks to the Flash Translation Layer (FTL) your OS doesn’t know where the data is physically. As a result, the Mac’s “Secure Empty Trash” command has been removed because it can’t be sure that the data is actually gone. But there’s an easy workaround for SSDs: encrypt, reformat, and re-encrypt, which is described below.
Read more at ZDNet
