Quote:
Originally posted by iwantchixx
I could recover your data in real time with a head that is misaligned.
File shredding is achieved by filling the data space with 0's and 1's. Zero fill just means it's left with data sate "0" after it's all done. So your shredder fills with 0's then 1's and does a 3rd pass to leave the 0's. Some more expensive shredders do 101010 in a few passes with last pass being 0 only. Still leaving a 0 state
Government specs are much higher in number of fills and also by government specs a zero fill must leave VERY minimal data bleed between the physical disk tracks on shredded data areas.
99 percent of the "shredding" and/or "zero fill" software around today can't get rid of any data bleed at all due to the fact that they are only allowed minimal amounts of passes by law in some states (They don't want law breakers erasing an evidence trail). In some cases it's even a programming and hardware limitation on how many consecutive fills can be performed without the drive failing permanantly.
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so what's the answer? leave everything encrypted? :-)
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