Hi there, On Thu, Jan 17, 2008 at 09:43:46AM +0100, Wojciech Puchar wrote: > how? even single write is enough
Not according to the paper that Gutmann wrote: http://www.usenix.org/publications/library/proceedings/sec96/full_papers/gutmann/ In short, he says that if you know how the data itself was overwritten it can be recovered. If I recall, the DoD standard for the deletion of data is to overwrite it 3 times. Obviously it all comes down to how important the data is that you're removing, but a single write is not enough if the data needs to be disposed of 'securely'. Cheers, Marc _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"