> On Jan 31, 2008, at 3:48 AM, SUBSCRIBE IBM-MAIN Niall wrote: > >> How about encrypting the volume in its entirety before deletion? >> >> I've been through the DR/deletion exercise a few times, and used an >> in-house >> utility to overwrite the disk. If available, however, would >> encryption not >> be a possible solution in that even if a shadow of the data were >> left, it >> should at least be in a format that is not readable? >> >> I ask because some sites may already have invested in an encryption >> tool, >> and it might be an imaginative use of an existing asset. >> > I vaguely remember a story here I cannot remember where I heard it > (it may be an urban legend). > *SUPPOSEDLY* the CIA (NSA??) was able to read a disk even after data > has been written on it, even after 10 or 11 times. > > I have heard this but where? I do *NOT* know if this is true or not. > > Ed I have worked at several top secret installations in the past and I was told that they take the old DASD and drop them in a acid bath then cut them up. Never saw it happened so not totally sure it was done or not. George Fogg
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