Securely Erase a Hard Drive or SSD

You don’t want any personal information left on your machine when you give it away or sell it. Do you take out the hard drive or SSD and smash it? Do you sweep it with a strong magnet? This guide provides effective and safe methods to wipe your hard drive or SSD on a Mac.

Source: Getting Rid of Your Mac? Here’s How to Securely Erase a Hard Drive or SSD