AlvinofDiaspar
Moderator
Or an old dog new tricks.
AoD
AoD
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This.
Some people are seriously gullible. "Wow, what a strange coincidence that the police managed to recover the video 2 days ago and decided to charge Lisi today. Remarkable."
Case in point:
The interesting upshot of this in criminal cases is that (as it was explained to me...) the whole thing about overwriting things x times with random information isn't necessary. The reason you need to overwrite all those times is that it's said to be possible to get info by opening up the physical device and looking at the residual magnetic whosamacallits to figure out what was once there. Ignoring the fact that it's apparently not really possible to do that anymore on modern drives because of the data density, it also means that you've changed up the drive enough that you can no longer use it as evidence.
Clayton Ruby is on Newstalk 1010 voicing the EXACT same concerns that I have re: Toronto Police investigation!
You do know he has Down's Syndrome, right?
Dontcha feel like an asshole? That brave little guy has overcome quite a bit in his life.
Nope. The reason you overwrite things with random data is that filesystems don't actually delete the data itself when you delete something. The sectors are marked as unused and the index relating that file is deleted. The actual data itself still exists, thats why it can be recovered. It has nothing to do with physically opening the drive itself.
I'm a network security analyst and I did my thesis project on Digital forensics. I'm not just spouting nonsense
Number of overwrites needed[edit]
Data on floppy disks can sometimes be recovered by forensic analysis even after the disks have been overwritten once with zeros (or random zeros and ones).[22] This is not the case with modern hard drives:
According to the 2006 NIST Special Publication 800-88 Section 2.3 (p. 6): "Basically the change in track density and the related changes in the storage medium have created a situation where the acts of clearing and purging the media have converged. That is, for ATA disk drives manufactured after 2001 (over 15 GB) clearing by overwriting the media once is adequate to protect the media from both keyboard and laboratory attack."[18]
According to the 2006 Center for Magnetic Recording Research Tutorial on Disk Drive Data Sanitization Document (p. 8): "Secure erase does a single on-track erasure of the data on the disk drive. The U.S. National Security Agency published an Information Assurance Approval of single pass overwrite, after technical testing at CMRR showed that multiple on-track overwrite passes gave no additional erasure."[23] "Secure erase" is a utility built into modern ATA hard drives that overwrites all data on a disk, including remapped (error) sectors.[citation needed]
Further analysis by Wright et al. seems to also indicate that one overwrite is all that is generally required.[24]
Is this some sort of joke? If so, it's in extremely bad taste
Where's MetroMan?
He's talking about overwriting things multiple times with random information. As I'm sure you know, "secure erase" tools have several different options for overwrite patterns (it's a tradeoff between speed and security). It's more than just overwriting used sectors (which of course is the minimum standard for deleting a file.)
Why is Ford saying he can't comment because it's before the courts? He hasn't been charged with anything.
But try playing that same game by pointing at Harper and I suspect more mental gymnastics.
Rob Ford got more done in 3 years on crack then Miller and Lastman combined did clean. That's the saddest part of this whole story.