![]() there's a 50/50 chance that that bit was correctly recovered) and as more data is recovered the probability decreases exponentially such that the probability quickly approaches 0 (i.e. ![]() This paper demonstrates that the probability of recovering a single bit is approximately 0.5, (i.e. Furthermore, the paper is specific to technology that has not been used in HDDs on over 15 years.įurthermore, a research paper has been published that refutes Gutmanns seminal paper stating the basis is unfounded. noone has attempted, or at least successfully managed to use this process to recover overwritten data even in a lab environment). The paper has never been corroborated (i.e. it has never even been attempted in a lab). The paper was purely hypothetical and was not based on any actual validation of the process (i.e. This seminal paper argued that it was possible to recover data that had been overwritten on a HDD based using magnetic force microscopy. The notion that it takes multiple passes to securely erase a HDD is FUD based on a seminal paper from 1996 by Peter Gutmann.
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