Paul Graydon <p...@paulgraydon.co.uk> writes:
> On 08/24/2010 02:25 PM, Doug Hughes wrote:
>>
>> You're right. I confused secure erasing (which no longer requires many
>> passes, even though it remains part of the common cargo-cult lore), with
>> recovery under normal circumstances. It is plausible, that normal
>> non-erased data could be recovered with a controller change on different
>> commonly used drive models of similar types.
>
> That one whizzed past my head with an audible whooshing sound. Since when
> does secure erasing no longer require multiple passes?
The current Australian standards only require a single pass for disks post
2001, or larger than 15GB, with an arbitrary pattern followed by read-back
verification. (...or an approved degauser.)
This covers everything including top secret labeled storage; see §6.2.92 of
the ISM Sep 09, although I understand it has been this way for a while.
http://www.dsd.gov.au/library/infosec/acsi33.html
Daniel
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✣ Daniel Pittman ✉ dan...@rimspace.net ☎ +61 401 155 707
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