This could possibly be done using a technique called Magnetic force microscopy.
http://www.cypherus.com/resources/docs/shred.htm describes this technique and also how to really erase data (which basically means just overwriting a large number of times :-) At 22:06 28/10/2002 -0000, you wrote: >Greetings Folks, > >I had an interesting conversation today with someone from FAST >(Federation >Against Software Theft) They pretend not to be a snitch wing of the BSA. >Anyway, to get to the point, the guy that came to see me said that their >forensics guys could read data off a hard drive that had been written >over >up to thirty times. I find this very hard to believe and told him I >thought >he was mistaken but the guy was adamant that it could be done. My >question >is, does anyone have any views on this, or, can anyone point me to a >source >of information where I can get the facts on exactly how much data can be >retrieved off a hard drive and under what conditions etc etc. > >Thanks > >Dave Adams ------------------------- Reece Arnott 62B Heriot Row Dunedin New Zealand +64 3 4774007 [EMAIL PROTECTED] -------------------------
