U.S. DoD - seven pass extended character rotation wiping [DoD 5200.28-STD]. And for the sake of argument the program i use has a limit of 100 passes. ----- Original Message ----- From: "maillist" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, October 30, 2002 7:45 AM Subject: RE: Interesting One
> I disagree with you both - the NSA standard for a drive that will be > recycled is a nine-pass wipe ... involving pseudo-random data, 0s and 1s ... > preferably in a non-predictable order ... > > Reading after thirty overwrites is just scare mongering. Depending on the > media it might just be possible on some drives (where the heads have moved > over time) ... but the kit to read from drives after just a couple of wipes > is expensive, and usually just the provision of government types ... > > Avoiderman > > > -----Original Message----- > > From: Nero, Nick [mailto:Nick.Nero@;disney.com] > > Sent: 29 October 2002 17:30 > > To: Dave Adams; [EMAIL PROTECTED] > > Subject: RE: Interesting One > > > > > > Well, the NSA standard I believe is that zero-filling a drive (writing > > all 0's to the platter) will make the data impossible to recover, but I > > am sure there are some instances when this isn't the cause depending on > > how retentive the media is and all that. If is electromagnetically > > degaussed for an extended period of time, I can't imagine anything could > > recover the data. > > > > Nick Nero, CISSP > > > > -----Original Message----- > > From: Dave Adams [mailto:dadams@;johncrowley.co.uk] > > Sent: Monday, October 28, 2002 5:06 PM > > To: [EMAIL PROTECTED] > > Subject: Interesting One > > > > > > 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
