I was thinking, since all this (reasonable) fuss on wiping a disk over 10 times to ensure non-readability, how come we're yet very limited on space usage? If, for example, I overwrote a bitmap file with a text one, what stops the computer from recovering/storing both (without using additional space)? Just a couple curiosities of mine.
On Tue, Jan 26, 2010 at 4:08 PM, Michael Holstein < [email protected]> wrote: > > > By the way, does somebody knows about the flash memory? > > Is zeroing a whole usb key enough to make the data unrecoverable? > > > > No, wear-leveling (done at the memory controller level) will dynamically > re-map addresses on the actual flash chip to ensure a relatively > consistent number of write cycles across the entire drive. > > The only way to completely "wipe" a flash disk is with a hammer. > > Regards, > > Michael Holstein > Cleveland State University > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ >
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