Carlo_M
Senior HTF Member
- Joined
- Oct 31, 1997
- Messages
- 13,392
Not to make you paranoid, but when I sold my 2006 MBP I ran a program I had back then (not sure I still have it and if I could find it I'm 99% sure it wouldn't run on my new MBP/Mountain Lion) that did DOD level erasing of HDs. I know I logged into my bank, credit card, work email/sites so I was super paranoid not to just do a clean install. The program wrote zeroes up to 42 times on all the hard disk but that would have taken days. I think I settled for one-pass, where it wrote zeroes on all sectors of the hard drive once, and then installed the OS fresh on top of it.