Re: For Laptops
From: Imhotep (Imhotep_at_nospam.com)
Date: 08/29/05
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Date: Sun, 28 Aug 2005 23:57:40 GMT
nemo_outis wrote:
> Imhotep <Imhotep@nospam.com> wrote in
> news:ZBnQe.64815$Yx1.22086@tornado.tampabay.rr.com:
>
>> nemo_outis wrote:
> ...snip...
>>>> LOL. a wipe is writing zeros to the drive.
>>>>
>>>>
>>>>
>>>
>>> No, not LOL. Learn before you scoff.
>>>
>>> There are a number of schemes that use the HPA area of the disk
>>> (essentially the HD underreports its physical size, effectively at
>>> the hardware level, and uses the extra space for various purposes).
>>> Data written to the HPA will survive most wiping and formatting
>>> efforts - it is even possible to use a two-level password scheme to
>>> protect this area.
>>
>> It was my understanding that this area was to be used when the hard
>> disk gets errors. In other words, this area was to provide "extra"
>> space (sectors) should some sectors go bad.
>
> The uses, if any, of the HPA are completely undefined. Until recently
> hardly anyone knew about HPA and even fewer did anything with it.
> (Personally I've long used it as a secret hidey-hole to stash stuff away
> from the prying eyes of sysadmins :-)
> Now some programs are coming out that use it. To the extent that they
> become popular and the existence of the HPA becomes better known, then
> all kinds of malware will appear which uses it (and its value to me as a
> hidey-hole will evaporate as did ADS before it.)
Good point, very good point...
<snip>
Imhotep
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