I have a stack of older (and not so old) hard drives sitting in my apartment. I have wanted to sell them or just get rid of them for a while. My problem is I have data on them, or had data on them. I am crazy about security. Sometimes not crazy enough, but when dealing with selling drives that once held my personal data on them, I am crazy. So what to do?
I know the multiple ways of removing data from disks. None of them include just formating the drive and selling it. I have wanted to invest in an electromagnet that degausses stuff. But that just screams Geek! it is also costly. I could do what Jay did and just copy lots of stuff onto the disks before formatting them and selling them.
I settled for a free program that will overwrite disks with random data. It is called eraser. it is a free open source product from Sourceforge.net. It is not a fast solution. Of course I selected the department of defense standard scheme for overwriting data. I don’t have state secrets on those drives, but I figured if it is good enough for the CIA to overwrite disks in this way, it is good enough for me. To be honest I selected the lowest DOD spec, but I figured that would be enough. Now I just wait while these drives get written over.