utility that can delete files
in [Windows XP]
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From: John John - MVP on 18 Jun 2010 10:14 Anthony Buckland wrote: > "Mike S" <mscir(a)yahoo.com> wrote in message > news:hveu94$d69$2(a)news.eternal-september.org... >> <snip> >>> I'm in the middle of securely disposing of a failed >>> hard drive (the failure of which condemns to death >>> a truly old machine that was reduced to performing >>> a few chores in the basement). I have the platters, >>> have read that any commonly used metal reaches >>> its Curie temperature and demagnetizes at heats >>> readily reached with propane torches or in the >>> depths of a briquette barbecue, and plan to roast >>> the platters in such a fire I will soon have access >>> to. Let CTU get something out of _them_! >> LOL. What is CTU? > > In the recently deceased TV show "24", the fictional > CTU, the CounterTerrorism Unit, was frequently faced > with computing resources (usually laptop or desktop > hard drives) which had been intentionally or occasionally > accidentally damaged before being captured from various > terrorist organizations. Their software and particularly > their personnel were legendary in being able to recover > just enough data to carry on a complex confrontation > with the baddies, but usually not close to enough data > to achieve a decisive victory. They tended to do better > as the end of each season approached, particularly > once the always-present mole trying to advance the > baddie cause in CTU headquarters had been detected. LOL, in other words this whole notion of recovering overwritten data is nothing but fiction! The same kind of nonsense happens on other shows like CSI, some people see these fictional TV shows and they think that the forensic tools and techniques shown in these shows are real! John
From: db on 18 Jun 2010 11:45 yeah, I agree. in fact, the wiping utilities don't overwrite the physical data in the disk sectors. users believe that the physical data in the disk sectors/clusters are over written by "umph" number of times by the wiping utilities. when it is only the multiple regions in the fat that are are overwritten by "umph" number of times by the utilities. -- db���`�...�><)))�> DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - @Hotmail.com - nntp Postologist ~ "share the nirvana" - dbZen ~~~~~~~~~~~~~~~ > > "Mike S" <mscir(a)yahoo.com> wrote in message news:hve5g3$ng3$1(a)news.eternal-september.org... > On 6/17/2010 11:10 AM, Db wrote: >> there are utilities that >> wipe the disk of deleted files. >> >> however, there are differing >> opinions whether wiping >> deleted files with something >> like military encryption >> is effective against >> hard drive forensics. >> >> my opinion and a old friend >> who is an m.i.t professor >> is that the only sure way that >> the contents on the disk are >> not retrievable is to toss the >> hard drive into a volcano or >> the middle of ocean in the >> middle of the night. > > I saw a show on television that mentioned some very powerful forensic > software that could find the last two (that's right 2) sets of files on a > hdd that had been overwritten. That is you save file A, then you overwrite > it with file B. Then you overwrite that with file C. They could recover B > and A with extremely high rates of accuracy!!! > > But most people do not have access to that software. > > I agree though that if you want 100% security - take the drive apart and > bend/smash the platters... > > OT addendum... and while you're ati it grab the neodymium magnets, they're > the strongest fixed magnets made and they're awesome. I've had some that > were strong enough to cling to one another through my hand, so when I held > my hand out horizontally and rotated the palm up or down the magnets > didn't fall off! And if you stick them together it's really hard to get > them apart. > > http://www.metacafe.com/watch/2301828/how_to_hack_a_hard_drive_to_get_a_neodymium_magnet_by_tj_with_www_videopatent_info/ > > Mike
From: Bob I on 18 Jun 2010 12:02 This one overwrites the clusters that contained the file http://technet.microsoft.com/en-us/sysinternals/bb897443.aspx I would surmise the others do likewise. db wrote: > yeah, > I agree. > > in fact, the wiping utilities > don't overwrite the physical > data in the disk sectors. > > users believe that the physical > data in the disk sectors/clusters > are over written by "umph" number > of times by the wiping utilities. > > when it is only the multiple > regions in the fat that are > are overwritten by "umph" > number of times by the > utilities. >
From: John John - MVP on 18 Jun 2010 12:21 db wrote: > in fact, the wiping utilities > don't overwrite the physical > data in the disk sectors. Of course they do, they overwrite every sector on the disk, including cluster tips. If the wiping utility doesn't do this then it is completely useless! John
From: Bill in Co. on 18 Jun 2010 12:51
John John - MVP wrote: > db wrote: > >> in fact, the wiping utilities >> don't overwrite the physical >> data in the disk sectors. > > Of course they do, they overwrite every sector on the disk, including > cluster tips. If the wiping utility doesn't do this then it is > completely useless! > > John :-) Hoopiehead alert??? |